Modum, Buskerud, Norway (original) (raw)

Description: Raade & Mladeck (1979) mention two kinds of coexsiting apatites at Tingelstadtjern; one being dominated by Cl, and the other by (OH,F).

ⓘ Aragonite

Formula: CaCO3

Localities:

Nedre Dypingdal Mine, Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Øvre Dypingdal Mine, Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway

ⓘ Arsenopyrite

Formula: FeAsS

Localities:

Skuterud Mines, Modum West, Modum, Buskerud, Norway
Døvikkollen, Modum West, Modum, Buskerud, Norway
Svartfjell Mines, Modum West, Modum, Buskerud, Norway

Description: Cobalt content vary from 2,8% to 11,8%. Samples with highest Co consist of two phases; glaucodote and arsenopyrite.

ⓘ Arsenopyrite var. Danaite

Formula: (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS

ⓘ Azurite

Formula: Cu3(CO3)2(OH)2

ⓘ Beryl

Formula: Be3Al2(Si6O18)

ⓘ Bianchite

Formula: Zn(SO4) · 6H2O

Habit: powder

Colour: white

Description: Bianchite was found in the dumps, when some of the material was removed and a deep profile of the dumps were revealed. It occured as a white to greyish powder, and are easily solved in water. The bianchite is almost without iron (Raade et al,1977).

ⓘ 'Biotite'

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

Localities:

Skuterud Mines, Modum West, Modum, Buskerud, Norway
Mellomgruvene, Skuterud Mines, Modum West, Modum, Buskerud, Norway
Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Hilsen Farm, Snarum, Modum, Buskerud, Norway
Døvikkollen, Modum West, Modum, Buskerud, Norway

ⓘ 'Biotite var. Anomite'

Description: as large crystals embedded in talc nodules in magnesite-dolomite

ⓘ Bismuth

Formula: Bi

ⓘ Bismuthinite

Formula: Bi2S3

ⓘ Bismutite

Formula: (BiO)2CO3

ⓘ Bornite

Formula: Cu5FeS4

ⓘ Brannerite

Formula: UTi2O6

Description: Occure in thin (< 0,5 cm) fractures in greenshist.

ⓘ Brianyoungite

Formula: Zn3(CO3,SO4)(OH)4

ⓘ Brochantite

Formula: Cu4(SO4)(OH)6

ⓘ Brucite

Formula: Mg(OH)2

ⓘ Calcite

Formula: CaCO3

Localities: Reported from at least 9 localities in this region.

ⓘ Cassiterite ?

Formula: SnO2

ⓘ 'Chabazite'

ⓘ Chalcanthite

Formula: CuSO4 · 5H2O

ⓘ Chalcopyrite

Formula: CuFeS2

Localities: Reported from at least 9 localities in this region.

ⓘ Cheralite ?

Formula: CaTh(PO4)2

Description: Described as "very tiny brownish crystals on hydroxylapatite" (Nordrum 2010).
Most probably a misidentification = monazite-(Ce) ??

ⓘ Chlorapatite

Formula: Ca5(PO4)3Cl

Description: Described by Raade & Mladeck (1979) as a apatite dominated by Cl; later by Raade, Mladeck & Din as Cl- bearing apatite

ⓘ 'Chlorite Group'

Localities:

Øvre Dypingdal Mine, Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Glomsrudkollen Zinc Mines, Åmot, Modum, Buskerud, Norway
Hassel iron mines, Modum, Buskerud, Norway
Såstad Mines, Modum West, Modum, Buskerud, Norway
Nesbruddet, Snarum, Modum, Buskerud, Norway

ⓘ Chrysocolla

Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1

ⓘ Chrysotile

Formula: Mg3(Si2O5)(OH)4

ⓘ Clinochlore

Formula: Mg5Al(AlSi3O10)(OH)8

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

ⓘ Clinochlore var. Leuchtenbergite

Formula: Mg5Al(AlSi3O10)(OH)8

Localities:

Tingelstadtjern Quarry, Modum, Buskerud, Norway
Overntjern Quarry, Overntjern, Modum, Buskerud, Norway
Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Øvre Dypingdal Mine, Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway

ⓘ Clinochlore var. Pennine

Formula: Mg5Al(AlSi3O10)(OH)8

ⓘ 'Clinopyroxene Subgroup'

ⓘ 'Coal blend'

ⓘ Cobaltite

Formula: CoAsS

Localities:

Skuterud Mines, Modum West, Modum, Buskerud, Norway
Svartfjell Mines, Modum West, Modum, Buskerud, Norway
Clara adit, Mellomgruvene, Skuterud Mines, Modum West, Modum, Buskerud, Norway
Midtgruven, Mellomgruvene, Skuterud Mines, Modum West, Modum, Buskerud, Norway
Døvikkollen, Modum West, Modum, Buskerud, Norway

Habit: Combinations of (210), (111) and (100).

Description: First cobaltite found in the Modum area was in 1772 by Ole Witloch.

ⓘ Collinsite

Formula: Ca2Mg(PO4)2 · 2H2O

Description: As replacement of reddish althausite.

References:

Chopin, Christian, Ferraris, Giovanni, Prencipe, Mauro, Brunet, Fabrice, Medenbach, Olaf (2001) Raadeite, Mg7(PO4)2(OH)8: a new dense-packed phosphate from Modum (Norway) European Journal of Mineralogy, 13 (2) 319-327 doi:10.1127/0935-1221/01/0013-0319

ⓘ Copper

Formula: Cu

ⓘ Cordierite

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

References:

Grew, Edward S., Pertsev, Nikolai N., Vrána, Stanislav, Yates, Martin G., Shearer, Charles K., Wiedenbeck, Michael (1998) Kornerupine parageneses in whiteschists and other magnesian rocks: is kornerupine + talc a high-pressure assemblage equivalent to tourmaline + orthoamphibole?. Contributions to Mineralogy and Petrology, 131 (1) 22-38 doi:10.1007/s004100050376

ⓘ Corundum

Formula: Al2O3

References:

ⓘ Cosalite

Formula: Pb2Bi2S5

ⓘ Covellite

Formula: CuS

ⓘ 'Crichtonite Group'

Formula: AD21O38 or A{DE2G6 J12}O38

ⓘ 'Davidite' ?

Description: Black, irregular masses with a vitreous to sub metallic lustre embedded in feldspar matrix have been labelled by collectors as "davidite". An analysis of some samples of these has shown these to be chrichtonite group minerals.

ⓘ Davidite-(La) ?

Formula: La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38

Description: According to Eldjarn & Viognola (2022) it is likely that davidite-(La) occurs at Åmot quarry, but this has not yet been confirmed.

ⓘ Devilline

Formula: CaCu4(SO4)2(OH)6 · 3H2O

ⓘ Diaspore

Formula: AlO(OH)

ⓘ Diopside

Formula: CaMgSi2O6

ⓘ Dolomite

Formula: CaMg(CO3)2

Localities:

Øvre Dypingdal Mine, Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Overntjern Quarry, Overntjern, Modum, Buskerud, Norway
Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Nesbruddet, Snarum, Modum, Buskerud, Norway
Tingelstadtjern Quarry, Modum, Buskerud, Norway

ⓘ Dravite

Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)

ⓘ Dypingite (TL)

Formula: Mg5(CO3)4(OH)2 · 5H2O

Habit: As small < 0,3 mm globular aggregates forming a thin cover on serpentine

Colour: white

Fluorescence: light blue

ⓘ Enstatite

Formula: Mg2Si2O6

Localities:

Overntjern Quarry, Overntjern, Modum, Buskerud, Norway
Øvre Dypingdal Mine, Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Olafsby, Snarum, Modum, Buskerud, Norway

~~Tingelstadtjern Quarry, Modum, Buskerud, Norway~~

(more information)

ⓘ Epidote

Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)

ⓘ Erythrite

Formula: Co3(AsO4)2 · 8H2O

Localities:

Skuterud Mines, Modum West, Modum, Buskerud, Norway
Clara adit, Mellomgruvene, Skuterud Mines, Modum West, Modum, Buskerud, Norway

ⓘ 'Feldspar Group'

Localities: Reported from at least 10 localities in this region.

ⓘ Fluorite

Formula: CaF2

ⓘ Forsterite

Formula: Mg2SiO4

Description: as remnants in antigorite pseudomorphs after forsterite crystals

ⓘ Galena

Formula: PbS

ⓘ Galenobismutite

Formula: PbBi2S4

ⓘ 'Garnet Group'

Formula: X3Z2(SiO4)3

Localities:

Glomsrudkollen Zinc Mines, Åmot, Modum, Buskerud, Norway
Skuterud Mines, Modum West, Modum, Buskerud, Norway
Hvalsknatten, Modum, Buskerud, Norway
Sætersberg (Sätersberg), Modum, Buskerud, Norway

ⓘ Gedrite

Formula: ◻{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2

Localities:

Mellomgruvene, Skuterud Mines, Modum West, Modum, Buskerud, Norway
Hilsen Farm, Snarum, Modum, Buskerud, Norway
Gedrite Quarry, Snarum, Modum, Buskerud, Norway

ⓘ Geikielite

Formula: MgTiO3

References:

Robinson, P., Langenhorst, F., McEnroe, S. A., Fabian, K., Ballaran, T. B. (2014) Ferroan geikielite and coupled spinel-rutile exsolution from titanohematite: Interface characterization and magnetic properties. American Mineralogist, 99 (8) 1694-1712 doi:10.2138/am.2014.4711

ⓘ Gibbsite

Formula: Al(OH)3

ⓘ Glaucodot

Formula: (Co0.50Fe0.50)AsS

Description: Scheerer (1838, p. 424) describe a mineral and cal it "arsenopyrite intergrown with Glandskobolt(cobaltite)", this mineral is identical as glaucodote which was described 11 years later.

ⓘ 'Glockerite'

Formula: Fe3+4(SO4)(OH)10 · 1-3H2O ?

Formula: Au

Formula: C

Formula: CdS

Formula: Ca3Al2(SiO4)3

ⓘ Gunningite

Formula: ZnSO4 · H2O

Description: Sample found by S.A. Berge and identified at the x-ray laboratory of Mineralogical Museum of Oslo in 1978.

ⓘ Gypsum

Formula: CaSO4 · 2H2O

ⓘ Haitaite-(La)

Formula: LaU4+Fe3+2(Ti13Fe2+4Fe3+)O38

Description: An U-rich chrichtonite group mineral from Åmot quarry is found to be similar in chemical composition to haitaite-(La).

ⓘ Helvine

Formula: Be3Mn2+4(SiO4)3S

Habit: tetrahedra up to 1 mm

Colour: yellow; red

ⓘ Hematite

Formula: Fe2O3

Localities: Reported from at least 12 localities in this region.

ⓘ Hemimorphite

Formula: Zn4Si2O7(OH)2 · H2O

✪ Heneuite (TL)

Formula: CaMg5(CO3)(PO4)3(OH)

Type Locality:

Habit: nodular masses several cm across

Colour: pale bluegreen

Description: often surrounded by a rim of althausite which is surrounded by apatite

ⓘ Hexahydrite

Formula: MgSO4 · 6H2O

ⓘ Holtedahlite (TL)

Formula: Mg2(PO4)(OH)

Type Locality:

Habit: irregular patches ; masses

Colour: colourless

Description: glassy.

ⓘ 'Hornblende Root Name Group'

Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2

ⓘ Hydromagnesite

Formula: Mg5(CO3)4(OH)2 · 4H2O

Description: Occure as white thin crusts on serpentine.

ⓘ Hydrotalcite (TL)

Formula: Mg6Al2(CO3)(OH)16 · 4H2O

Localities:

Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Snarum, Modum, Buskerud, Norway
Øvre Dypingdal Mine, Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway

Colour: white, blueish

ⓘ 'Hydrotalcite-2H'

Formula: Mg6Al2(CO3)(OH)16 · 4H2O

Description: The description give Snarum as locality, but it's presumably the Dypingdal locality - as for hydrotalcite.

ⓘ Hydroxylapatite

Formula: Ca5(PO4)3(OH)

ⓘ Hydrozincite

Formula: Zn5(CO3)2(OH)6

ⓘ Ilmenite

Formula: Fe2+TiO3

Localities:

Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Haugfoss, Modum, Buskerud, Norway
Grautåsen, Modum, Buskerud, Norway
Granodiorite outrop, Modum, Buskerud, Norway

Description: as microscopic inclusions in hematite

ⓘ 'K Feldspar'

ⓘ Kornerupine

Formula: Mg3Al6(Si,Al,B)5O21(OH)

ⓘ 'Kornerupine-Prismatine Series'

References:

ⓘ Ktenasite

Formula: ZnCu4(SO4)2(OH)6 · 6H2O

Habit: thin platy or laths up to 1 mm

Colour: green

Description: Nice micro crystals was discovered in 1972. Often growing on clear gypsum crystals

ⓘ Kyanite

Formula: Al2(SiO4)O

References:

ⓘ Lansfordite

Formula: MgCO3 · 5H2O

References:

Lu, Yang, Sednev-Lugovets, Anton, Carvalho, Patricia, Guzik, Matylda, Dunkel, Kristina, Austrheim, Håkon, Friis, Henrik (2023) Dypingite revisited. Norsk Mineralsymposium 2023, 23-30

ⓘ 'Leucoxene'

ⓘ 'Limonite'

ⓘ Linnaeite

Formula: Co2+Co3+2S4

ⓘ Lizardite

Formula: Mg3(Si2O5)(OH)4

Localities:

Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Tingelstadtjern Quarry, Modum, Buskerud, Norway
Øvre Dypingdal Mine, Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway

ⓘ Löllingite

Formula: FeAs2

Habit: small lenses (2,0 x 0,5 cm)

Description: Two specimens in the Naturhistoriska Riksmuseet in Stockholm, Sweden (Nos.L.K. 6981 and L.K. 6982)

ⓘ Mackinawite

Formula: FeS

ⓘ Maghemite

Formula: (Fe3+0.67◻0.33)Fe3+2O4

ⓘ Magnesioferrite

Formula: MgFe3+2O4

ⓘ Magnesite

Formula: MgCO3

Localities: Reported from at least 11 localities in this region.

ⓘ Magnetite

Formula: Fe2+Fe3+2O4

Localities: Reported from at least 7 localities in this region.

Habit: as microscopic inclusions in althausite and holtedahlite

ⓘ Malachite

Formula: Cu2(CO3)(OH)2

Localities:

Skuterud Mines, Modum West, Modum, Buskerud, Norway
Glomsrudkollen Zinc Mines, Åmot, Modum, Buskerud, Norway
Forhaapnings adit, Mellomgruvene, Skuterud Mines, Modum West, Modum, Buskerud, Norway ? (more information)

ⓘ Marcasite

Formula: FeS2

ⓘ Melanterite

Formula: Fe2+(H2O)6SO4 · H2O

ⓘ Mianningite ?

Formula: (◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38

ⓘ 'Mica Group'

Localities:

Lofthus, Snarum, Modum, Buskerud, Norway
Oksøyekollen, Snarum, Modum, Buskerud, Norway
Hugget Prospect, Simostranda, Modum, Buskerud, Norway
Sætersberg (Sätersberg), Modum, Buskerud, Norway

ⓘ Microcline

Formula: K(AlSi3O8)

ⓘ Millerite

Formula: NiS

ⓘ Molybdenite

Formula: MoS2

Localities:

Skuterud Mines, Modum West, Modum, Buskerud, Norway
Mellomgruvene, Skuterud Mines, Modum West, Modum, Buskerud, Norway
Svartfjell Mines, Modum West, Modum, Buskerud, Norway

ⓘ Monazite-(Ce)

Formula: Ce(PO4)

Description: Sverdrup et al. report monazite-(Ce) as accessory mineral in the ore-bands. Monazite-(Ce) have been found in a small pegmatite close to Skutterud mines, together with schörl in muscovite (P. Andresen, self collected).

ⓘ Muscovite

Formula: KAl2(AlSi3O10)(OH)2

Localities: Reported from at least 11 localities in this region.

ⓘ Muscovite var. Sericite

Formula: KAl2(AlSi3O10)(OH)2

ⓘ Namuwite ?

Formula: Zn4(SO4)(OH)6 · 4H2O

ⓘ Natrojarosite

Formula: NaFe3(SO4)2(OH)6

Description: Scheerer (1838) describes a mineral as "Gelbeisenerz" occuring on schist, and determines a formula very close to the one of natrojarosite. Van der Wel made a new analysis of a yellow mineral labled Mælum, Modum - that might be the same as Scheerer described, and it turned out to be natrojarosite (Neumann (1985)

ⓘ Nesquehonite

Formula: MgCO3 · 3H2O

References:

Lu, Yang, Sednev-Lugovets, Anton, Carvalho, Patricia, Guzik, Matylda, Dunkel, Kristina, Austrheim, Håkon, Friis, Henrik (2023) Dypingite revisited. Norsk Mineralsymposium 2023, 23-30

ⓘ Pentlandite

Formula: (NixFey)Σ9S8

ⓘ Pentlandite var. Silver-bearing Pentlandite

Formula: (Ni,Fe,Ag)9S8

ⓘ Phlogopite

Formula: KMg3(AlSi3O10)(OH)2

Localities:

Skuterud Mines, Modum West, Modum, Buskerud, Norway
Øvre Dypingdal Mine, Dypingdal serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
Midtgruven, Mellomgruvene, Skuterud Mines, Modum West, Modum, Buskerud, Norway
Såstad Mines, Modum West, Modum, Buskerud, Norway

ⓘ Phosphoellenbergerite

Formula: (Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6

ⓘ 'Plagioclase'

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

ⓘ Posnjakite

Formula: Cu4(SO4)(OH)6 · H2O

ⓘ Pyrite

Formula: FeS2

Localities: Reported from at least 10 localities in this region.

ⓘ Pyroaurite ?

Formula: Mg6Fe3+2(OH)16[CO3] · 4H2O

Habit: hexagonal platy crystals

Colour: white to pale brown

Description: Described as a pyroaurite-like mineral. Identity uncertain

ⓘ Pyrope

Formula: Mg3Al2(SiO4)3

ⓘ 'Pyroxene Group'

Formula: ADSi2O6

ⓘ Pyrrhotite

Formula: Fe1-xS

Localities: Reported from at least 7 localities in this region.

ⓘ Quartz

Formula: SiO2

Localities: Reported from at least 18 localities in this region.

ⓘ Quintinite

Formula: Mg4Al2(OH)12(CO3) · 3H2O

ⓘ Raadeite (TL)

Formula: Mg7(PO4)2(OH)8

Habit: veinlets, a few tens of µm wide

Colour: transparent and colourless

Description: It occurs as veinlets, a few tens of µm wide, crosscutting althausite crystals; also as rare, up to 150 µm large anhedral inclusions in holtedahlite; and with apatite, althausite and magnesite in fibrous coronae replacing heneuite (Chopin et al. 2001)

ⓘ Rutile

Formula: TiO2

Localities: Reported from at least 7 localities in this region.

ⓘ Safflorite

Formula: (Co,Ni,Fe)As2

ⓘ 'Scapolite'

Description: Goldschmidt (1911) describes it as a "dipyr" (

ⓘ Scheelite

Formula: Ca(WO4)

ⓘ Schorl

Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

Description: Analysis of a sample of black tourmaline by Kolitsch et al (2011) showed it to be a Mg-rich, Ca-bearing schorl

ⓘ Schulenbergite

Formula: (Cu,Zn)7(SO4)2(OH)10 · 3H2O

ⓘ 'Serpentine Subgroup'

Formula: D3[Si2O5](OH)4

Localities: Reported from at least 8 localities in this region.

ⓘ Serpierite

Formula: Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O

ⓘ Siegenite

Formula: CoNi2S4

ⓘ Sillimanite

Formula: Al2(SiO4)O

ⓘ Silver

Formula: Ag

ⓘ Skutterudite (TL)

Formula: CoAs3

Type Locality:

Habit: Typical: (111), (211), (110) and more rarely: (100), (310) and (332).

Description: Breithaupt(1827)first named it as Tesseralkies but the properties was described under the heading Hartkobaltkies". Scheerer (1837) introduced the name Arsenik-Koboltkiis", Hausmann (1847)as "Hartkobalterze", Nicol (1849) it as "Modumite", and Haidinger described it as "skutterudite".

ⓘ Smithsonite

Formula: ZnCO3

ⓘ Sphalerite

Formula: ZnS

Localities:

Glomsrudkollen Zinc Mines, Åmot, Modum, Buskerud, Norway
Maurtjern Prospect, Åmot, Modum, Buskerud, Norway
Skuterud Mines, Modum West, Modum, Buskerud, Norway

ⓘ Spinel

Formula: MgAl2O4

ⓘ 'Stilbite Subgroup'

Formula: M6-7[Al8-9Si27-28O72] · nH2O

ⓘ Szaibélyite

Formula: MgBO2(OH)