Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany (original) (raw)

Aegirine

Formula: NaFe3+Si2O6

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Aegirine var. Titanium-bearing Aegirine

Formula: Na(Fe,Ti)Si2O6

Aegirine-augite

Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

Aegirine-augite var. Porricin

Formula: (Na,Ca)(Fe3+,Fe2+,Mg,Al)Si2O6

Afghanite

Formula: (Na,K)22Ca10(Si24Al24O96)(SO4)6Cl6

Afwillite

Formula: Ca3[SiO4][SiO2(OH)2] · 2H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Åkermanite

Formula: Ca2Mg[Si2O7]

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Albite

Formula: Na(AlSi3O8)

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Albite var. Andesine

Formula: (Na,Ca)[Al(Si,Al)Si2O8]

Albite var. Anorthoclase

Formula: (Na,K)AlSi3O8

Albite var. Oligoclase

Formula: (Na,Ca)[Al(Si,Al)Si2O8]

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

Alfredcasparite (TL)

Formula: Sr2TiO(Si2O7)

Type Locality:

Allophane

Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O

Almandine

Formula: Fe2+3Al2(SiO4)3

Almarudite (TL)

Formula: K◻2Mn2+2(Be2Al)[Si12O30]

Type Locality:

Habit: six-sided tabular crystals to 1.5 mm across

Colour: yellow, orange

Fluorescence: none

Alumoåkermanite

Formula: (CaNa)Al[Si2O7]

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Alunite

Formula: KAl3(SO4)2(OH)6

Alunogen

Formula: Al2(SO4)3 · 17H2O

'Amphibole Supergroup'

Formula: A B2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Analcime

Formula: Na(AlSi2O6) · H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Andradite

Formula: Ca3Fe3+2(SiO4)3

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

'Andradite-Schorlomite Series'

References:

Galuskin, Evgeny V., Krüger, Biljana, Krüger, Hannes, Blass, Günter, Widmer, Remo, Galuskina, Irina O. (2016) Wernerkrauseite, CaFe3+2Mn4+O6: the first nonstoichiometric post-spinel mineral, from Bellerberg volcano, Eifel, Germany. European Journal of Mineralogy, 28 (2) 485-493 doi:10.1127/ejm/2016/0028-2509

Anhydrite

Formula: CaSO4

Anorthite

Formula: Ca(Al2Si2O8)

Anorthite var. Bytownite

Formula: (Ca,Na)[Al(Al,Si)Si2O8]

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

'Apatite'

Formula: Ca5(PO4)3(Cl/F/OH)

'Apophyllite Group'

Formula: A B4[Si8O22]X · 8H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Aragonite

Formula: CaCO3

Augite

Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6

Azurite

Formula: Cu3(CO3)2(OH)2

Baddeleyite

Formula: ZrO2

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Baghdadite

Formula: Ca6Zr2(Si2O7)2O4

Description: rock-forming, very small

Baryte

Formula: BaSO4

Localities:

E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Batiferrite

Formula: BaTi2Fe3+8Fe2+2O19

Batisite

Formula: BaNaNaTi2(Si4O12)O2

Bellbergite

Formula: (K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2O

Description: In Ca-rich xenoliths.

Bennesherite

Formula: Ba2Fe2+[Si2O7]

References:

Krzątała, Arkadiusz, Skrzyńska, Katarzyna, Cametti, Georgia, Galuskina, Irina, Vapnik, Yevgeny, Galuskin, Evgeny (2023) Fluoralforsite, Ba5(PO4)3F – a new apatite group mineral from the Hatrurim Basin, Negev Desert, Israel. Mineralogical Magazine, 1-32 doi:10.1180/mgm.2023.58

'Biotite'

Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

Bixbyite-(Mn)

Formula: Mn3+2O3

Bornite

Formula: Cu5FeS4

Braunite

Formula: Mn2+Mn3+6(SiO4)O8

Bredigite

Formula: Ca7Mg(SiO4)4

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Brownmillerite

Formula: Ca2(Al,Fe3+)2O5

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Brucite

Formula: Mg(OH)2

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Calcio-olivine

Formula: Ca2SiO4

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Calcite

Formula: CaCO3

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Calumetite

Formula: CaCu4(OH)8Cl2 · 3.5H2O

Habit: tabular

Colour: sky-blue

Description: The type specimen was collected in 1993 in the northern part of the Caspar quarry.

References:

Schlüter, J., Malcherek, T., Pohl, D., Schäfer, C. (2018): Vondechenite, a new hydrous calcium copper chloride hydroxide, from the Bellerberg, East-Eifel volcanic area, Germany. Neues Jahrbuch fur Mineralogie - Abhandlungen, 195, 79-86.

Cancrinite

Formula: (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O

Carnotite

Formula: K2(UO2)2(VO4)2 · 3H2O

Celestine

Formula: SrSO4

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Celsian

Formula: Ba(Al2Si2O8)

References:

Krzątała, Arkadiusz, Skrzyńska, Katarzyna, Cametti, Georgia, Galuskina, Irina, Vapnik, Yevgeny, Galuskin, Evgeny (2023) Fluoralforsite, Ba5(PO4)3F – a new apatite group mineral from the Hatrurim Basin, Negev Desert, Israel. Mineralogical Magazine, 1-32 doi:10.1180/mgm.2023.58

Cerianite-(Ce)

Formula: (Ce4+,Th)O2

'Chabazite'

Localities:

Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Chabazite-Ca

Formula: (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Chalcocite

Formula: Cu2S

Localities:

E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Chalcopyrite

Formula: CuFeS2

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Charlesite

Formula: Ca6(Al,Si)2(SO4)2[B(OH)4](OH,O)12 · 26H2O

Chayesite

Formula: K◻2Mg2(Mg2Fe3+)[Si12O30]

Cheralite

Formula: CaTh(PO4)2

Description: Cheralite was redefined in 2007. The mineral originally described from Bellerberg volcano is a Monazite-(Ce) enriched in Ca+Th.

Chevkinite-(Ce)

Formula: Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2

Chlorapatite

Formula: Ca5(PO4)3Cl

Chlormayenite

Formula: Ca12Al14O32[◻4Cl2]

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

'Chlormayenite-Wadalite Series'

References:

Juroszek, Rafał, Krüger, Hannes, Galuskina, Irina, Krüger, Biljana, Jeżak, Lidia, Ternes, Bernd, Wojdyla, Justyna, Krzykawski, Tomasz, Pautov, Leonid, Galuskin, Evgeny (2018) Sharyginite, Ca3TiFe2O8, A New Mineral from the Bellerberg Volcano, Germany. Minerals, 8 (7) 308 doi:10.3390/min8070308

Chromite

Formula: Fe2+Cr3+2O4

Clinoenstatite

Formula: MgSiO3

Clinoferrosilite

Formula: Fe2+2Si2O6

Columbite-(Fe)

Formula: Fe2+Nb2O6

Conichalcite

Formula: CaCu(AsO4)(OH)

Cordierite

Formula: (Mg,Fe)2Al3(AlSi5O18)

References:

Schreyer, W., Maresch, W.V., Daniels, P., Wolfsdorff, P., (1990): Potassic cordierites: characteristic minerals for high-temparature, very low-pressure environmnets, Contributions to Mineralogy and Petrology, Vol, 105, 2/March 1990, 162-172

Corundum

Formula: Al2O3

Corundum var. Sapphire

Formula: Al2O3

Covellite

Formula: CuS

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Cristobalite

Formula: SiO2

Cubanite

Formula: CuFe2S3

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Cuprite

Formula: Cu2O

Cuprorivaite

Formula: CaCuSi4O10

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Cuspidine

Formula: Ca8(Si2O7)2F4

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Davyne

Formula: (Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2

Devilline

Formula: CaCu4(SO4)2(OH)6 · 3H2O

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

Digenite

Formula: Cu9S5

Diopside

Formula: CaMgSi2O6

Localities:

Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Dolomite

Formula: CaMg(CO3)2

Dorrite

Formula: Ca4(Mg3Fe3+9)O4(Si3Al8Fe3+O36)

References:

Shchipalkina, Nadezhda V., Pekov, Igor V., Chukanov, Nikita V., Koshlyakova, Natalya N., Ternes, Bernd, Schüller, Willi (2019) Crystal chemistry of dorrite from the Eifel volcanic region, Germany, and chemical variations in the khesinite-dorrite-rhönite-kuratite solid-solution system. Mineralogy and Petrology, 113 (2) 249-259 doi:10.1007/s00710-018-0645-0

Edenite

Formula: NaCa2Mg5(Si7Al)O22(OH)2

Colour: brown

Description: rock-forming, occurs in amphibolite-xenoliths from the crystalline basement

Eifelite (TL)

Formula: KNa2(MgNa)Mg3[Si12O30]

Type Locality:

References:

Abraham, K.. Gebert, W., Medenbach, O., Schreyer, W., Hentschel, G., (1980) KNa3Mg4,5[Si12O30], ein neues Mineral der Milaritgruppe aus der Eifel, mit Natrium in Oktaederposition. Fortschritte der Mineralogie: 58(1): 3-4.

'Ellestadite'

Enstatite

Formula: Mg2Si2O6

'Enstatite-Ferrosilite Series'

References:

Chukanov, N.V., Aksenov, S.M., Pekov, I.V., Ternes, В., Schüller, W., Belakovskiy, D.I., Van, K.V., Blass, G. (2014): Ferroindialite (Fe2+,Mg)2Al4Si5O18, a new beryl-group mineral from the Eifel volcanic region, Germany. Zapiski RMO, 143, 46-56.

Erionite-Ca

Formula: (Ca,K2,Na2)2[Al4Si14O36] · 15H2O

Ettringite

Formula: Ca6Al2(SO4)3(OH)12 · 26H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Fayalite

Formula: Fe2+2SiO4

'Fayalite-Forsterite Series'

References:

[Schottler, W., Der Ettringer Bellerberg, ein Vulcan des Laacher See-Gebietes, N. Jahrb., Beilage , Band XI, S. 554-662, 1898] 8Lapis, 15 (5), 9-36]

Fergusonite-(Y)

Formula: YNbO4

Ferri-kaersutite

Formula: NaCa2(Mg3Fe3+Ti)(Si6Al2O22)O2

Habit: acicular, prismatic, tabular

Colour: black, dark brown

Ferri-obertiite

Formula: NaNa2(Mg3Fe3+Ti)Si8O22O2

Description: Ferri-Obertiite is confirmed by EMPA, Fe/Mn ratio is ~ 7:1,

References:

Oberti, Roberta, Boiocchi, Massimo, Hawthorne, Frank C., Ball, Neil A., Blass, Günter (2017) Ferri-obertiite from the Rothenberg quarry, Eifel volcanic complex, Germany: mineral data and crystal chemistry of a new amphibole end-member. Mineralogical Magazine, 81 (3) 641-651 doi:10.1180/minmag.2016.080.117

'Ferri-tschermakite'

Formula: ◻{Ca2}{Mg3Fe3+2}(Al2Si6O22)(OH)2

Description: rock-forming, occurs in amphibolite-xenoliths from the crystalline basement

Ferro-ferri-obertiite ?

Formula: NaNa2(Fe2+3Fe3+Ti)Si8O22O2

Description: A specimen tested via quantitative EDS and IR by Nikita Chukanov corresponds with a ferro-ferri-obertiite composition. Fe3+/Fe2+ ratio was determined via charge balance and IR spectrum show absence of (OH).

Ferroindialite (TL)

Formula: (Fe2+,Mg)2Al4Si5O18

Type Locality:

References:

Chukanov, N.V., Aksenov, S.M., Pekov, I.V., Ternes, В., Schüller, W., Belakovskiy, D.I., Van, K.V., Blass, G. (2014): Ferroindialite (Fe2+,Mg)2Al4Si5O18, a new beryl-group mineral from the Eifel volcanic region, Germany. Zapiski RMO, 143, 46-56.

Ferrosilite

Formula: Fe2+2Si2O6

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

Flörkeite (TL)

Formula: (K3Ca2Na)[Al8Si8O32] · 12H2O

Type Locality:

References:

Lengauer, Christian L., Kolitsch, Uwe, Tillmanns, Ekkehart (2009) Flörkeite, K3Ca2Na[Al8Si8O32]·12H2O, a new phillipsite-type zeolite from the Bellerberg, East Eifel volcanic area, Germany. European Journal of Mineralogy, 21 (4). 901-913 doi:10.1127/0935-1221/2009/0021-1952

Fluorapatite

Formula: Ca5(PO4)3F

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Fluorapophyllite-(K)

Formula: KCa4(Si8O20)(F,OH) · 8H2O

Localities:

Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Fluorellestadite

Formula: Ca5(SiO4)1.5(SO4)1.5F

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Fluorite

Formula: CaF2

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Fluoro-richterite

Formula: {Na}{CaNa}{Mg5}(Si8O22)(F,OH)2

References:

Hawthorne, Frank C., Cooper, Mark A., Grice, Joel D., Ottolini, Luisa (2000) A new anhydrous amphibole from the Eifel region, Germany: Description and crystal structure of obertiite, NaNa2(Mg3Fe3+Ti4+)Si8O22O2. American Mineralogist, 85 (1) 236-241 doi:10.2138/am-2000-0124

Forsterite

Formula: Mg2SiO4

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Fresnoite

Formula: Ba2Ti(Si2O7)O

References:

Krzątała, Arkadiusz, Skrzyńska, Katarzyna, Cametti, Georgia, Galuskina, Irina, Vapnik, Yevgeny, Galuskin, Evgeny (2023) Fluoralforsite, Ba5(PO4)3F – a new apatite group mineral from the Hatrurim Basin, Negev Desert, Israel. Mineralogical Magazine, 1-32 doi:10.1180/mgm.2023.58

Friedrichbeckeite (TL)

Formula: K(◻Na)Mg2(Be2Mg)[Si12O30]

Type Locality:

References:

Lengauer, C. L., Hrauda, N., Kolitsch, U., Krickl, R., Tillmanns, E. (2009) Friedrichbeckeite, K (□0.5Na0.5)2 (Mg0.8Mn0.1Fe0.1)2 (Be0.6 Mg0.4)3 [Si12O30], a new milarite-type mineral from the Bellerberg volcano, Eifel area, Germany. Mineralogy and Petrology, 96 (3) 221-232 doi:10.1007/s00710-009-0050-9

'Garnet Group'

Formula: X3Z2(SiO4)3

Gaudefroyite

Formula: Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3

Gehlenite

Formula: Ca2Al[AlSiO7]

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Gismondine-Ca

Formula: CaAl2Si2O8 · 4H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

'Gismondine Subgroup'

Goethite

Formula: α-Fe3+O(OH)

Grandidierite

Formula: (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2

Graphite

Formula: C

Grossular

Formula: Ca3Al2(SiO4)3

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Grossular var. Hibschite

Formula: Ca3Al2(SiO4)3-x(OH)4x

Grossular var. Hydrogrossular

Gypsum

Formula: CaSO4 · 2H2O

Gyrolite

Formula: NaCa16Si23AlO60(OH)8 · 14H2O

Harmunite

Formula: CaFe2O4

Haüyne

Formula: Na3Ca(Si3Al3)O12(SO4)

Hedenbergite

Formula: CaFe2+Si2O6

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Hematite

Formula: Fe2O3

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Hercynite

Formula: Fe2+Al2O4

Hydrocalumite

Formula: Ca4Al2(OH)12(Cl,CO3,OH)2 · 4H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Hydromagnesite

Formula: Mg5(CO3)4(OH)2 · 4H2O

Hydroxyapophyllite-(K)

Formula: KCa4(Si8O20)(OH,F) · 8H2O

Hydroxylapatite

Formula: Ca5(PO4)3(OH)

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Hydroxylellestadite

Formula: Ca5(SiO4)1.5(SO4)1.5(OH)

Ilmenite

Formula: Fe2+TiO3

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Indialite

Formula: Mg2Al3(AlSi5O18)

Isocubanite

Formula: CuFe2S3

Jacobsite

Formula: Mn2+Fe3+2O4

Jarosite

Formula: KFe3+3(SO4)2(OH)6

Jasmundite

Formula: Ca11(SiO4)4O2S

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Jennite

Formula: Ca9(Si3O9)2(OH)8 · 8H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Kalsilite

Formula: KAlSiO4

Karlleuite (TL)

Formula: Ca2MnO4

Type Locality:

References:

Juroszek, R., Krüger, B., Cametti, G., Ternes, B., and Blaß, G.: Karlleuite, IMA 2023-102, in: CNMNC Newsletter 78, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-361-2024, 2024.

Katoite

Formula: Ca3Al2[◻(OH)4]3

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Kerimasite

Formula: Ca3Zr2(SiO4)(Fe3+O4)2

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

'K Feldspar'

Khesinite

Formula: Ca4(Mg3Fe3+9)O4(Fe3+9Si3)O36

References:

Shchipalkina, Nadezhda V., Pekov, Igor V., Chukanov, Nikita V., Koshlyakova, Natalya N., Ternes, Bernd, Schüller, Willi (2019) Crystal chemistry of dorrite from the Eifel volcanic region, Germany, and chemical variations in the khesinite-dorrite-rhönite-kuratite solid-solution system. Mineralogy and Petrology, 113 (2) 249-259 doi:10.1007/s00710-018-0645-0

Kinoshitalite

Formula: (Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2

References:

Hawthorne, Frank C., Cooper, Mark A., Grice, Joel D., Ottolini, Luisa (2000) A new anhydrous amphibole from the Eifel region, Germany: Description and crystal structure of obertiite, NaNa2(Mg3Fe3+Ti4+)Si8O22O2. American Mineralogist, 85 (1) 236-241 doi:10.2138/am-2000-0124

Kottenheimite (TL)

Formula: Ca 3Si(SO4)2(OH)6 · 12H2O

Type Locality:

References:

Chukanov, N. V., Britvin, S. N., Van, K. V., Mockel, S., Zadov, A. E. (2012) Kottenheimite, Ca3Si(OH)6(SO4)2·12H2O, a new member of the ettringite group from the Eifel area, Germany. The Canadian Mineralogist, 50 (1) 55-63 doi:10.3749/canmin.50.1.55

Kuzelite

Formula: Ca4Al2(OH)12[SO4] · 6H2O

Laihunite

Formula: (Fe2+0.5◻0.5)Fe3+[SiO4]

Lakargiite

Formula: Ca(Zr,Sn,Ti)O3

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Langite

Formula: Cu4(SO4)(OH)6 · 2H2O

Larnite

Formula: Ca2SiO4

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Lepidocrocite

Formula: γ-Fe3+O(OH)

Leucite

Formula: K(AlSi2O6)

'Lévyne'

Lévyne-Ca

Formula: (Ca,Na2,K2)[Al2Si4O12] · 6H2O

References:

[Hentschel, G., (1980): Weitere bemerkenswerte Mineralfunde aus quartären Vulkanvorkommen der Eifel, Mainzer geowiss. Mitt. 8, 169-172] [Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors]

Lorenzenite

Formula: Na2Ti2(Si2O6)O3

Magnesioferrite

Formula: MgFe3+2O4

Localities: Reported from at least 6 localities in this region.

Magnesio-fluoro-arfvedsonite

Formula: [Na][Na2][Mg4Fe3+][Si8O22](F,OH)2

Magnesio-fluoro-hastingsite

Formula: NaCa2(Mg4Fe3+)(Si6Al2)O22F2

Magnesio-hastingsite

Formula: NaCa2(Mg4Fe3+)(Si6Al2)O22(OH)2

Description: rock-forming, occurs in amphibolite-xenoliths from the crystalline basement

Magnetite

Formula: Fe2+Fe3+2O4

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Malachite

Formula: Cu2(CO3)(OH)2

Mangani-obertiite (TL)

Formula: NaNa2(Mg3Mn3+Ti4+)Si8O22O2

Type Locality:

Description: A mineral with the empirical formula (K0.18Na0.84)(Na1.86Ca0.08Fe2+0.06)(Mg3.09Zn0.01Li0.03Fe3+0.29Mn3+0.37Fe2+0.41Ti4+0.86Al0.03)Si8.00O22[(OH)0.20F0.26O1.54] was published by Hawthorne et al (2000) as obertiite, but was later renamed ferri-obertiite and then mangani-obertiite. See the respective mineral pages for further details.

References:

Hawthorne, Frank C., Cooper, Mark A., Grice, Joel D., Ottolini, Luisa (2000) A new anhydrous amphibole from the Eifel region, Germany: Description and crystal structure of obertiite, NaNa2(Mg3Fe3+Ti4+)Si8O22O2. American Mineralogist, 85 (1) 236-241 doi:10.2138/am-2000-0124

Mangano-mangani-ungarettiite

Formula: NaNa2(Mn2+2Mn3+3)(Si8O22)O2

Marcasite

Formula: FeS2

Marokite

Formula: CaMn3+2O4

Mazorite

Formula: Ba3(PO4)2

References:

Krzątała, Arkadiusz, Skrzyńska, Katarzyna, Cametti, Georgia, Galuskina, Irina, Vapnik, Yevgeny, Galuskin, Evgeny (2023) Fluoralforsite, Ba5(PO4)3F – a new apatite group mineral from the Hatrurim Basin, Negev Desert, Israel. Mineralogical Magazine, 1-32 doi:10.1180/mgm.2023.58

Meionite

Formula: Ca4Al6Si6O24CO3

'Melilite Group'

Formula: Ca2M(XSiO7)

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Merrihueite

Formula: K(◻Na)Fe2+2Fe2+3[Si12O30]

Miyahisaite

Formula: (Sr,Ca)2Ba3(PO4)3F

Monazite-(Ce)

Formula: Ce(PO4)

'Monazite Group'

Formula: REE(PO4)

Monticellite

Formula: CaMgSiO4

Montmorillonite

Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O

Morimotoite

Formula: Ca3(TiFe2+)(SiO4)3

Mottramite

Formula: PbCu(VO4)(OH)

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

Mullite

Formula: Al4+2xSi2-2xO10-x

Muscovite

Formula: KAl2(AlSi3O10)(OH)2

Muscovite var. Fuchsite

Formula: K(Al,Cr)3Si3O10(OH)2

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

Nabimusaite

Formula: KCa12(SiO4)4(SO4)2O2F

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Namansilite

Formula: NaMn3+Si2O6

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

Narsarsukite

Formula: Na2(Ti,Fe3+)Si4(O,F)11

Natrojarosite

Formula: NaFe3(SO4)2(OH)6

Nepheline

Formula: Na3K(Al4Si4O16)

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Niter

Formula: KNO3

Nordstrandite

Formula: Al(OH)3

'Obertiite Root Name Group'

Formula: ANa2(Z2+3Z3+Ti)Si8O22O2

Description: Obertiite root name minerals with variable Fe:Mn ratios have been analysed and both ferri-obertiite and mangani-obertiite has been identified. These minerals do not appear to be possible to distinguish by simple means

References:

Hawthorne, Frank C., Cooper, Mark A., Grice, Joel D., Ottolini, Luisa (2000) A new anhydrous amphibole from the Eifel region, Germany: Description and crystal structure of obertiite, NaNa2(Mg3Fe3+Ti4+)Si8O22O2. American Mineralogist, 85 (1) 236-241 doi:10.2138/am-2000-0124

Offretite

Formula: KCaMg(Si13Al5)O36 · 15H2O

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

Opal

Formula: SiO2 · nH2O

Localities:

Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Opal var. Opal-AN

Formula: SiO2 · nH2O

Orthoclase

Formula: K(AlSi3O8)

Osumilite

Formula: K◻2Fe2+2Al3[Al2Si10O30]

Habit: rock forming

Colour: dark blue, black-blue

'Osumilite Group'

Formula: (XIIC)(IXB)2(VIA)2(IVT2)3[(IVT1)12O30]

Osumilite-(Mg) (TL)

Formula: K◻2Mg2Al3[Al2Si10O30]

Type Locality:

Habit: Tabular, short prismatic

Colour: on (0001) pale-blue to dark blue, on (10-10) yellow-brown-green

References:

Chukanov, N. V., Pekov, I. V., Rastsvetaeva, R. K., Aksenov, S. M., Belakovskiy, D. I., Van, K. V., Schüller, W., Ternes, B. (2013) Osumilite-(Mg): Validation as a mineral species and new data. Geology of Ore Deposits, 55 (7) 587-593 doi:10.1134/s1075701513070064

Owensite

Formula: (Ba,Pb)6(Cu,Fe,Ni)25S27

'Oxycalciobetafite'

Formula: Ca2(Ti,Nb)2O6O

Pargasite

Formula: NaCa2(Mg4Al)(Si6Al2)O22(OH)2

Description: rock-forming, occurs in amphibolite-xenoliths from the crystalline basement

Pavlovskyite

Formula: Ca8(SiO4)2(Si3O10)

References:

Galuskin, Evgeny V., Krüger, Biljana, Krüger, Hannes, Blass, Günter, Widmer, Remo, Galuskina, Irina O. (2016) Wernerkrauseite, CaFe3+2Mn4+O6: the first nonstoichiometric post-spinel mineral, from Bellerberg volcano, Eifel, Germany. European Journal of Mineralogy, 28 (2) 485-493 doi:10.1127/ejm/2016/0028-2509

Periclase

Formula: MgO

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Perovskite

Formula: CaTiO3

Localities: Reported from at least 6 localities in this region.

Phillipsite-Ca

Formula: Ca3(Si10Al6)O32 · 12H2O

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

Phillipsite-K

Formula: (K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

'Phillipsite Subgroup'

Phlogopite

Formula: KMg3(AlSi3O10)(OH)2

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi2]O8

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Plombièrite

Formula: [Ca4Si6O16(OH)2 · 2H2O] · (Ca · 5H2O)

Portlandite

Formula: Ca(OH)2

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Powellite

Formula: Ca(MoO4)

Pseudobrookite

Formula: Fe2TiO5

Pyrite

Formula: FeS2

'Pyrochlore Group'

Formula: A2Nb2(O,OH)6Z

Description: Covering altered Monazite-(Ce),it is likely that the Pyrochlore described by Hentschel is identical with the unnamed Ce member of the Betafite Subgroup.

'Pyrochlore Group var. Calciobetafite (of Mazzi & Munno)'

Formula: (Ca,Na)2(Nb,Ti)2(O,OH)7

Description: The Calciobetafite described from this locality is identical with the unnamed Ce member of the Betafite Subgroup

'Pyrochlore Supergroup'

Formula: A2-mD2X6-wZ1-n

Description: The Calciobetafite described from this locality is identical with the unnamed Ce member of the Betafite Subgroup

'Pyroxene Group'

Formula: ADSi2O6

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Pyroxferroite

Formula: (Fe,Mn,Ca)SiO3

Pyroxmangite

Formula: Mn2+SiO3

Pyrrhotite

Formula: Fe1-xS

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Description: Analyzed material was tiny black spheroids in cavities and in matrix of sandstone xenolith.

Quadridavyne

Formula: (Na,K)6Ca2(Al6Si6O24)Cl4

Quartz

Formula: SiO2

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

'Quartz-beta'

Formula: SiO2

Description: Quartz-beta is not stable at room temperature. All crystals are paramorphs of quartz after quartz-beta.

Rankinite

Formula: Ca3Si2O7

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Reinhardbraunsite (TL)

Formula: Ca5(SiO4)2(OH,F)2

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Colour: light pink

Description: In Ca-rich xenoliths.

Rhodesite

Formula: KHCa2Si8O19 · 5H2O

Rhönite

Formula: Ca4[Mg8Fe3+2Ti2]O4[Si6Al6O36]

References:

Shchipalkina, Nadezhda V., Pekov, Igor V., Chukanov, Nikita V., Koshlyakova, Natalya N., Ternes, Bernd, Schüller, Willi (2019) Crystal chemistry of dorrite from the Eifel volcanic region, Germany, and chemical variations in the khesinite-dorrite-rhönite-kuratite solid-solution system. Mineralogy and Petrology, 113 (2) 249-259 doi:10.1007/s00710-018-0645-0

Roedderite

Formula: K(◻Na)Mg2Mg3[Si12O30]

Rondorfite (TL)

Formula: Ca8Mg(SiO4)4Cl2

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Habit: minute grains to 0.5 mm across

Colour: orange brown

Fluorescence: none

Rozenite

Formula: FeSO4 · 4H2O

Rusinovite

Formula: Ca10(Si2O7)3Cl2

References:

Galuskin, Evgeny V., Krüger, Biljana, Krüger, Hannes, Blass, Günter, Widmer, Remo, Galuskina, Irina O. (2016) Wernerkrauseite, CaFe3+2Mn4+O6: the first nonstoichiometric post-spinel mineral, from Bellerberg volcano, Eifel, Germany. European Journal of Mineralogy, 28 (2) 485-493 doi:10.1127/ejm/2016/0028-2509

Rutile

Formula: TiO2

Sanidine

Formula: K(AlSi3O8)

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Schäferite (TL)

Formula: (NaCa2)Mg2(VO4)3

Type Locality:

Habit: isometric

Colour: orange-red, orange-brown

Description: In paragenesis with Magnesioferrite

Schorlomite

Formula: Ca3Ti2(SiO4)(Fe3+O4)2

Scottyite

Formula: BaCu2Si2O7

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Sekaninaite

Formula: (Fe,Mg)2Al3(AlSi5O18)

Sellaite

Formula: MgF2

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

Sharyginite (TL)

Formula: Ca3TiFe2O8

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Shulamitite

Formula: Ca3TiFe3+AlO8

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Siderite

Formula: FeCO3

Sillimanite

Formula: Al2(SiO4)O

Sodalite

Formula: Na4(Si3Al3)O12Cl

Spessartine

Formula: Mn2+3Al2(SiO4)3

Spinel

Formula: MgAl2O4

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Spurrite

Formula: Ca5(SiO4)2(CO3)

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Srebrodolskite

Formula: Ca2Fe3+2O5

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Stellerite

Formula: Ca4(Si28Al8)O72 · 28H2O

Strätlingite

Formula: Ca2Al2SiO7 · 8H2O

Tangeite

Formula: CaCu(VO4)(OH)

Tazheranite

Formula: (Zr,Ti,Ca)(O,◻)2

Localities:

Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Tenorite

Formula: CuO

Ternesite (TL)

Formula: Ca5(SiO4)2(SO4)

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Description: Mostly green, rarely pale blue, and very rarely brown.

Thaumasite

Formula: Ca3(SO4)[Si(OH)6](CO3) · 12H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Thénardite

Formula: Na2SO4

Thomsonite-Ca

Formula: NaCa2[Al5Si5O20] · 6H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Thorite ?

Formula: Th(SiO4)

Titanite

Formula: CaTi(SiO4)O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Tobermorite

Formula: Ca4Si6O17(H2O)2 · (Ca · 3H2O)

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

'Tobermorite Group'

Formula: Ca4+x(AlySi6-y)O15+2x-y · 5H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Description: In most cases the „Tobermorites“ from Bellerberg volcano are an intergrowth varying in composition, consisting of Tobermorite-11A, Plombierite and Clinotobermorite.

Topaz

Formula: Al2(SiO4)(F,OH)2

Trattnerite

Formula: ◻(◻)2Fe3+2Mg3[Si12O30]

Tridymite

Formula: SiO2

Tschörtnerite (TL)

Formula: Ca4(Ca,Sr,K,Ba)3Cu3[Al3Si3O12]4(OH)8 · nH2O

Type Locality:

References:

Coombs, Douglas S., Albert, Alberto, Armbruster, Thomas, Artioli, Gilberto, Colella, Carmine, Galli, Ermanno, Grice, Joel D., Liebau, Friedrich, Mandarino, Joseph A., Minato, Hideo, Nickel, Ernest H., Passaglia, Elio, Peacor, Donald R., Quartier, Simona, Rinaldi, Romano, Ross, Malcolm, Sheppard, Richard A., Tillmanns, Ekkehart, Vezzalini, Giovanna (1998) Recommended nomenclature for zeolite minerals: Report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. European Journal of Mineralogy, 10 (5) 1037-1081 doi:10.1127/ejm/10/5/1037

Ulvöspinel

Formula: TiFe2+2O4

'Unnamed (Ce member of the Betafite Subgroup)'

Formula: Ca, Ce, Nb, Ti, O

''Unnamed (Cu-Mg-Silicate)''

'Unnamed (Monoclinic polymorph of Pseudobrookite)'

Formula: Fe2TiO5

References:

Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors

Vaterite

Formula: CaCO3

Vertumnite

Formula: Ca4Al4Si4O6(OH)24 · 3H2O

Volborthite

Formula: Cu3(V2O7)(OH)2 · 2H2O

Vorlanite

Formula: Ca(U6+)O4

Wadalite

Formula: (Ca,Mg)6(Al,Fe3+)4((Si,Al)O4)3O4Cl3

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Wernerkrauseite-bearing xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Wagnerite

Formula: Mg2(PO4)F

Wakefieldite-(La)

Formula: La(VO4)

Walstromite

Formula: BaCa2(Si3O9)

References:

Krzątała, Arkadiusz, Skrzyńska, Katarzyna, Cametti, Georgia, Galuskina, Irina, Vapnik, Yevgeny, Galuskin, Evgeny (2023) Fluoralforsite, Ba5(PO4)3F – a new apatite group mineral from the Hatrurim Basin, Negev Desert, Israel. Mineralogical Magazine, 1-32 doi:10.1180/mgm.2023.58

Wernerkrauseite (TL)

Formula: Ca(Fe3+,Mn3+)2Mn4+O6

Type Locality:

References:

Galuskin, Evgeny V., Krüger, Biljana, Krüger, Hannes, Blass, Günter, Widmer, Remo, Galuskina, Irina O. (2016) Wernerkrauseite, CaFe3+2Mn4+O6: the first nonstoichiometric post-spinel mineral, from Bellerberg volcano, Eifel, Germany. European Journal of Mineralogy, 28 (2) 485-493 doi:10.1127/ejm/2016/0028-2509

Wesselsite

Formula: SrCuSi4O10

Willhendersonite

Formula: KCa[Al3Si3O12] · 5H2O

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Colour: clear

Description: clear well-formed crystals in cavities in limestone xenolith from a basalt

Wollastonite

Formula: Ca3(Si3O9)

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-036 (Vondechenite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Xenotime-(Y)

Formula: Y(PO4)

Ye'elimite

Formula: Ca4Al6(SO4)O12

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
E-2011 xenolith, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-050, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Zadovite

Formula: BaCa6[(SiO4)(PO4)](PO4)2F

References:

Krzątała, Arkadiusz, Skrzyńska, Katarzyna, Cametti, Georgia, Galuskina, Irina, Vapnik, Yevgeny, Galuskin, Evgeny (2023) Fluoralforsite, Ba5(PO4)3F – a new apatite group mineral from the Hatrurim Basin, Negev Desert, Israel. Mineralogical Magazine, 1-32 doi:10.1180/mgm.2023.58

Zeophyllite

Formula: Ca13Si10O28(OH)2F8 · 6H2O

Zircon

Formula: Zr(SiO4)

Localities:

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-034 (Alfredcasparite-bearing xenolith), Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Xenolith CS-029, Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany

Zirconolite

Formula: CaZrTi2O7

Description: Zirconolite-2M, Zirconolite-3T