Arendal, Agder, Norway (original) (raw)

Acanthite

Formula: Ag2S

Aeschynite-(Y)

Formula: (Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6

Habit: Platy after {101}. Forms observed: {001},{130},{021}

Colour: Brownish black with an outer bluegreyish alteration film

Description: Platy crystals up to 7-8 cm along the c-axis has been found.

Albite

Formula: Na(AlSi3O8)

Localities: Reported from at least 16 localities in this region.

Albite var. Oligoclase

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

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

'Alkali Feldspar'

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

Allanite-(Ce)

Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)

'Allanite Group'

Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

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

Almandine

Formula: Fe2+3Al2(SiO4)3

'Amphibole Supergroup'

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

Localities: Reported from at least 14 localities in this region.

Description: Orthoamphibole

'Amphibole Supergroup var. Uralite'

Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2

Analcime

Formula: Na(AlSi2O6) · H2O

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

Andradite

Formula: Ca3Fe3+2(SiO4)3

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

Andradite var. Colophonite

Formula: Ca3Fe3+2(SiO4)3

'Andradite-Grossular Series'

'Apatite'

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

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

'Apatite var. Moroxite'

Localities:

Langsæv Mine, Steinsås, Barbudalen, Arendal, Agder, Norway
Klodeborg og Landvik Quarry, Stoa, Arendal, Agder, Norway
Arendal, Agder, Norway

'Apophyllite Group'

Formula: A B4[Si8O22]X · 8H2O

'Asbestos'

'Atheriastite'

Formula: near Ca5MgFeAl6Si8O32 · 5H2O

References:

Weibye, P. H., Berlin, N. J., Sjögren, K. A., von Borck, J. B. (1850) Neue Mineralien aus Norwegen beschrieben von P.H. Weibye; analysirt von N.J. Berlin, K.A. Sjögren und J.B. von Borck (Erster Theil) [1.Tritomit, 2. Katapleiit, 3. Atheriasit, 4. Eudnophit.]. [New minerals from Norway described by P.H. Weibye; analyzed by N.J. Berlin, K.A. Sjögren and J.B. von Borck (first part) [1.tritomite, 2. catapleiite, 3. atheriasite, 4. eudnophite.].]. Annalen der Physik und Chemie, 155. 299-304 doi:10.1002/andp.18501550210

Augite

Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6

Localities:

Torbjørnsbu Mine, Barbudalen, Arendal, Agder, Norway
Neskilen Mines, Arendal, Agder, Norway
Stoll Mine, Neskilen Mines, Arendal, Agder, Norway

Axinite-(Fe)

Formula: Ca2Fe2+Al2BSi4O15OH

Description: Found in Vestre Kjenli Gruve

'Axinite Group'

Axinite-(Mn)

Formula: Ca2Mn2+Al2BSi4O15(OH)

Azurite

Formula: Cu3(CO3)2(OH)2

Babingtonite (TL)

Formula: Ca2(Fe,Mn)FeSi5O14(OH)

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

Baryte

Formula: BaSO4

Beryl

Formula: Be3Al2(Si6O18)

Localities:

Solborg Mines, Øyestad, Arendal, Agder, Norway
Alviken Feldspar Quarry, Stokken, Arendal, Agder, Norway
Klodeborg og Landvik Quarry, Stoa, Arendal, Agder, Norway

'Biotite'

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

Localities: Reported from at least 14 localities in this region.

Bornite

Formula: Cu5FeS4

Cahnite

Formula: Ca2[B(OH)4](AsO4)

Description: Bugge (1951) found cahnite as small crystals (1-2mm) in calcite-marble found in the dumps of the mine.

Calcite

Formula: CaCO3

Localities: Reported from at least 28 localities in this region.

'Chabazite'

Chalcopyrite

Formula: CuFeS2

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

'Chlorite Group'

Localities:

Langsæv Mine, Steinsås, Barbudalen, Arendal, Agder, Norway
Narestø Feldspar Quarry, Flosta, Arendal, Agder, Norway
Gamle Mørefjær Mine (Mørfjær Mine), Neskilen Mines, Arendal, Agder, Norway
Stoll Mine, Neskilen Mines, Arendal, Agder, Norway
Mørefjær Feldspar Quarry (Mörefjer), Stokken, Arendal, Agder, Norway

Chondrodite

Formula: Mg5(SiO4)2F2

Chrysoberyl

Formula: BeAl2O4

Clinofergusonite-(Y)

Formula: YNbO4

Clinohumite

Formula: Mg9(SiO4)4F2

'Clinopyroxene Subgroup'

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

Description: Between enderbite and dehydration zone.

Clinozoisite

Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)

'Coal blend'

Columbite-(Fe)

Formula: Fe2+Nb2O6

References:

Balassone, Giuseppina, Danisi, Rosa Micaela, Armbruster, Thomas, Altomare, Angela, Moliterni, Anna Grazia, Petti, Carmela, Mondillo, Nicola, Ghiara, Maria Rosaria, Saviano, Michele (2015) An insight into crystal chemistry and cation order of columbite-(Fe) and columbite-(Mn) from worldwide occurrences. Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geoche, 192 (3) 275-287 doi:10.1127/njma/2015/0285

Copper

Formula: Cu

Cordierite

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

Localities:

Hove, Tromøy, Arendal, Agder, Norway
UHT granulite outcrop, Havsøysund, Hisøy, Arendal, Agder, Norway
Faervik school, Tromøy, Arendal, Agder, Norway

Corundum

Formula: Al2O3

References:

Kihle, Jan, Harlov, D. E., Frigaard, Ø., Jamtveit, B. (2010) Epitaxial quartz inclusions in corundum from a sapphirine-garnet boudin, Bamble Sector, SE Norway: SiO2-Al2O3 miscibility at high P-T dry granulite facies conditions. Journal of Metamorphic Geology, 28 (7) 769-784 doi:10.1111/j.1525-1314.2010.00891.x

Datolite (TL)

Formula: CaB(SiO4)(OH)

Localities:

Nødebro Mine (Nøddebro), Øyestad, Arendal, Agder, Norway
Kjenlie Mine (Østre Kjenlie Mine), Kjenlie Mines, Klodeborg Mines, Øyestad, Arendal, Agder, Norway
Klodeborg Mines, Øyestad, Arendal, Agder, Norway

Datolite var. Botryolite (FRL)

Localities:

Kjenlie Mine (Østre Kjenlie Mine), Kjenlie Mines, Klodeborg Mines, Øyestad, Arendal, Agder, Norway
Klodeborg Mines, Øyestad, Arendal, Agder, Norway

Diopside

Formula: CaMgSi2O6

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

Dravite

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

Epidote

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

Localities: Reported from at least 19 localities in this region.

Euxenite-(Y)

Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

Localities:

Landbø Mine, Landbø, Austre Moland, Arendal, Agder, Norway
Hella 1 Feldspar Quarry, Helle, Stokken, Arendal, Agder, Norway
Mørefjær Feldspar Quarry (Mörefjer), Stokken, Arendal, Agder, Norway
Alve Feldspar Quarry, Tromøy, Arendal, Agder, Norway

'Fayalite-Forsterite Series'

Localities:

Klodeborg Mines, Øyestad, Arendal, Agder, Norway
Løddesøl, Øyestad, Arendal, Agder, Norway
Tromøy meteorite, Tromøy, Arendal, Agder, Norway

'Feldspar Group'

Localities: Reported from at least 17 localities in this region.

'Feldspar Group var. Perthite'

'Feldspar Group var. Sunstone'

'Fergusonite'

Localities:

Alve Feldspar Quarry, Tromøy, Arendal, Agder, Norway
Hampemyr, Tromøy, Arendal, Agder, Norway
Lofstad Iron Mines, Tromøy, Arendal, Agder, Norway
Hella 1 Feldspar Quarry, Helle, Stokken, Arendal, Agder, Norway
Narestø Feldspar Quarry, Flosta, Arendal, Agder, Norway

Ferro-hornblende

Formula: ◻Ca2(Fe2+4Al)(Si7Al)O22(OH)2

Fluorapophyllite-(K)

Formula: KCa4(Si8O20)(F,OH) · 8H2O

Fluorite

Formula: CaF2

'Fluor-uvite-Uvite Series'

'Gabbronite' (FRL)

Type Locality:

'Gadolinite' ?

Gahnite

Formula: ZnAl2O4

'Garnet Group'

Formula: X3Z2(SiO4)3

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

Gold

Formula: Au

Description: .

Graphite

Formula: C

Grossular

Formula: Ca3Al2(SiO4)3

Localities:

Torbjørnsbu Mine, Barbudalen, Arendal, Agder, Norway
Kjenlie Mine (Østre Kjenlie Mine), Kjenlie Mines, Klodeborg Mines, Øyestad, Arendal, Agder, Norway
Vågsnes Mines, Tromøy, Arendal, Agder, Norway
Klodeborg Mines, Øyestad, Arendal, Agder, Norway

Groutite

Formula: Mn3+O(OH)

Description: Found as nice needle-shaped crystals, and are identified with x-ray (XRD/XRF?)by Bugge in 1962.

'Gummite'

'Gummite var. Yttrogummite'

Hematite

Formula: Fe2O3

Heulandite-Ca

Formula: (Ca,Na)5(Si27Al9)O72 · 26H2O

Description: Half the crystal analyzed contained calcian heulandite-K (Nordrum et al 2003)

Heulandite-K

Formula: (K,Ca,Na)5(Si27Al9)O72 · 26H2O

Description: In crystals of heulandite (half the crystal analyzed contained calcian heulandite-K , Nordrum et al 2003)

'Heulandite Subgroup'

Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O

Localities:

Torbjørnsbu Mine, Barbudalen, Arendal, Agder, Norway
Rannekleiv Mine, Øyestad, Arendal, Agder, Norway
Gamle Mørefjær Mine (Mørfjær Mine), Neskilen Mines, Arendal, Agder, Norway
Mørefjær Feldspar Quarry (Mörefjer), Stokken, Arendal, Agder, Norway
Tømmerkaia, Eydehavn, Stokken, Arendal, Agder, Norway

'Hornblende Root Name Group'

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

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

Ilmenite

Formula: Fe2+TiO3

Localities:

Garta Feldspar Quarry, Stokken, Arendal, Agder, Norway
Hove, Tromøy, Arendal, Agder, Norway
Nødebro Mine (Nøddebro), Øyestad, Arendal, Agder, Norway

'K Feldspar'

Localities:

Havsøya, Arendal, Agder, Norway
Langsæv Mine, Steinsås, Barbudalen, Arendal, Agder, Norway
Torbjørnsbu Mine, Barbudalen, Arendal, Agder, Norway
Enderbitic vein, Havsøya, Arendal, Agder, Norway

'K Feldspar var. Adularia'

Formula: KAlSi3O8

Kornerupine

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

Colour: bluishgreen to pale yellow

Leucite

Formula: K(AlSi2O6)

Description: Probably analcime

Magnetite

Formula: Fe2+Fe3+2O4

Localities: Reported from at least 26 localities in this region.

Description: Described by Forbes & Dahl (1855) as "Magnetjernsteen"

Malachite

Formula: Cu2(CO3)(OH)2

Marcasite

Formula: FeS2

Marialite

Formula: Na4Al3Si9O24Cl

Mesolite

Formula: Na2Ca2Si9Al6O30 · 8H2O

'Metanocerin'

'Meteoritic Iron'

Description: Meteorite is ~16.6 wt% metallic iron (plus accompanying Ni&Co).

'Mica Group'

Localities:

Alve Feldspar Quarry, Tromøy, Arendal, Agder, Norway
Torbjørnsbu Mine, Barbudalen, Arendal, Agder, Norway
Alveholms Mine, Alvekilen Fe Mines, Tromøy, Arendal, Agder, Norway

Microcline (TL)

Formula: K(AlSi3O8)

Localities:

Arendal, Agder, Norway
Narestø Feldspar Quarry, Flosta, Arendal, Agder, Norway
Løddesøl, Øyestad, Arendal, Agder, Norway
Noddeland Feldspar and Quartz Quarry, Arendal, Agder, Norway
Hamnevollneset, Stokken, Arendal, Agder, Norway

'Microperthite'

Molybdenite

Formula: MoS2

Localities:

Langsæv Mine, Steinsås, Barbudalen, Arendal, Agder, Norway
Ulve Mine, Steinsås, Barbudalen, Arendal, Agder, Norway
Alviken Feldspar Quarry, Stokken, Arendal, Agder, Norway

'Monazite Group'

Formula: REE(PO4)

Montmorillonite ?

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

Description: May be kaolinite. Described as steinmark by Weibye (1848)

Muscovite

Formula: KAl2(AlSi3O10)(OH)2

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

Muscovite var. Sericite

Formula: KAl2(AlSi3O10)(OH)2

Localities:

Tromøy, Arendal, Agder, Norway
Havsøya, Arendal, Agder, Norway
Enderbitic vein, Havsøya, Arendal, Agder, Norway

Natrolite

Formula: Na2Al2Si3O10 · 2H2O

Localities:

Langsæv Mine, Steinsås, Barbudalen, Arendal, Agder, Norway
Barbu Iron Mine, Steinsås, Barbudalen, Arendal, Agder, Norway

'Neolite'

Nickeline

Formula: NiAs

Description: Small grains together with small silver treads. Described by Vogt (1884, 1886) as "kobbernikkel"

Okayamalite

Formula: Ca2B[BSiO7]

Description: Second known occurrence of the mineral. Okayamalite probably was formed by a desilication-dehydroxylation process of the associated datolite.

References:

Olmi, F., Viti, C., Bindi, L., Bonazzi, P., Menchetti, S. (2000) Second occurrence of okayamalite, Ca2SiB2O7: chemical and TEM characterization. American Mineralogist, 85 (10) 1508-1511 doi:10.2138/am-2000-1022

Orthoclase

Formula: K(AlSi3O8)

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

'Orthopyroxene Subgroup'

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

Papikeite (TL)

Formula: NaMg2(Mg3Al2}(Al3Si5O22)(OH)2

Phlogopite

Formula: KMg3(AlSi3O10)(OH)2

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

Description: Ti-rich

'Plagioclase'

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

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

Description: In dehydration zone.

Prehnite

Formula: Ca2Al2Si3O10(OH)2

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

'Pumpellyite Subgroup'

Formula: Ca2XAl2[Si2O6(OH)][SiO4](OH)2A

Localities:

Langsæv Mine, Steinsås, Barbudalen, Arendal, Agder, Norway
Barbu Iron Mine, Steinsås, Barbudalen, Arendal, Agder, Norway
Gamle Mørefjær Mine (Mørfjær Mine), Neskilen Mines, Arendal, Agder, Norway
Rannekleiv Mine, Øyestad, Arendal, Agder, Norway

Pyrite

Formula: FeS2

Localities: Reported from at least 14 localities in this region.

'Pyroxene Group'

Formula: ADSi2O6

Localities:

Klodeborg Mines, Øyestad, Arendal, Agder, Norway
Klodeborg og Landvik Quarry, Stoa, Arendal, Agder, Norway
Tromøy meteorite, Tromøy, Arendal, Agder, Norway

Pyrrhotite

Formula: Fe1-xS

Quartz

Formula: SiO2

Localities: Reported from at least 32 localities in this region.

Quartz var. Amethyst

Formula: SiO2

Quartz var. Smoky Quartz

Formula: SiO2

Rhodonite

Formula: CaMn3Mn[Si5O15]

Rutile

Formula: TiO2

Localities:

Ærøya, Arendal, Agder, Norway
Monbua, Tromøy, Arendal, Agder, Norway
Løddesøl, Øyestad, Arendal, Agder, Norway

Rutile var. Ilmenorutile

Formula: (Ti,Nb)O2

Samarskite-(Y) ?

Formula: YFe3+Nb2O8

Sapphirine

Formula: Mg4(Mg3Al9)O4[Si3Al9O36]

References:

Kihle, Jan, Harlov, D. E., Frigaard, Ø., Jamtveit, B. (2010) Epitaxial quartz inclusions in corundum from a sapphirine-garnet boudin, Bamble Sector, SE Norway: SiO2-Al2O3 miscibility at high P-T dry granulite facies conditions. Journal of Metamorphic Geology, 28 (7) 769-784 doi:10.1111/j.1525-1314.2010.00891.x

'Scapolite'

Localities: Reported from at least 19 localities in this region.

'Scapolite var. Wernerite'

Schorl

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

Description: Listed as "Skjörl" by Holm (1824)

Scolecite

Formula: CaAl2Si3O10 · 3H2O

'Serpentine Subgroup'

Formula: D3[Si2O5](OH)4

Sillimanite

Formula: Al2(SiO4)O

References:

Kihle, Jan, Harlov, D. E., Frigaard, Ø., Jamtveit, B. (2010) Epitaxial quartz inclusions in corundum from a sapphirine-garnet boudin, Bamble Sector, SE Norway: SiO2-Al2O3 miscibility at high P-T dry granulite facies conditions. Journal of Metamorphic Geology, 28 (7) 769-784 doi:10.1111/j.1525-1314.2010.00891.x

Silver

Formula: Ag

Localities:

Stølsvig silver mine (Hisøy silver mine), Hisøy, Arendal, Agder, Norway
Nødebro Mine (Nøddebro), Øyestad, Arendal, Agder, Norway
Vragvigen, Hisøy, Arendal, Agder, Norway

Habit: Thin treads

Skutterudite

Formula: CoAs3

Sphalerite

Formula: ZnS

Localities:

Bråstad Mines, Øyestad, Arendal, Agder, Norway
Klodeborg Mines, Øyestad, Arendal, Agder, Norway
Neskilen Mines, Arendal, Agder, Norway
Langsæv Mine, Steinsås, Barbudalen, Arendal, Agder, Norway

Spinel

Formula: MgAl2O4

Localities:

UHT granulite outcrop, Havsøysund, Hisøy, Arendal, Agder, Norway
Klodeborg Mines, Øyestad, Arendal, Agder, Norway
Stoll Mine, Neskilen Mines, Arendal, Agder, Norway
Haabets Mine, Tromøy, Arendal, Agder, Norway
Vågsnes Mines, Tromøy, Arendal, Agder, Norway

Spinel var. Pleonaste

Formula: (Mg,Fe)Al2O4

Localities:

Stoll Mine, Neskilen Mines, Arendal, Agder, Norway
Klodeborg Mines, Øyestad, Arendal, Agder, Norway
Haabets Mine, Tromøy, Arendal, Agder, Norway
Vågsnes Mines, Tromøy, Arendal, Agder, Norway

Staurolite

Formula: Fe2+2Al9Si4O23(OH)

References:

Kihle, Jan, Harlov, D. E., Frigaard, Ø., Jamtveit, B. (2010) Epitaxial quartz inclusions in corundum from a sapphirine-garnet boudin, Bamble Sector, SE Norway: SiO2-Al2O3 miscibility at high P-T dry granulite facies conditions. Journal of Metamorphic Geology, 28 (7) 769-784 doi:10.1111/j.1525-1314.2010.00891.x

Stellerite

Formula: Ca4(Si28Al8)O72 · 28H2O

Localities:

Barbu Iron Mine, Steinsås, Barbudalen, Arendal, Agder, Norway
Langsæv Mine, Steinsås, Barbudalen, Arendal, Agder, Norway
Rannekleiv Mine, Øyestad, Arendal, Agder, Norway
Bø Mine, Arendal, Agder, Norway

'Stilbite Subgroup'

Formula: M6-7[Al8-9Si27-28O72] · nH2O

Localities:

Langsæv Mine, Steinsås, Barbudalen, Arendal, Agder, Norway
Rannekleiv Mine, Øyestad, Arendal, Agder, Norway
Austre Moland, Arendal, Agder, Norway

Talc

Formula: Mg3Si4O10(OH)2

'Tennantite-Tetrahedrite Series'

'Thomsonite Subgroup'

Habit: Small fibrous, radiating spherulites

Thorite

Formula: Th(SiO4)

Localities:

Garta Feldspar Quarry, Stokken, Arendal, Agder, Norway
Fjeld Quarry (Fjellvand Quarry), Austre Moland, Arendal, Agder, Norway
Bjelland, Tromøy, Arendal, Agder, Norway
Kloppene, Arendal, Agder, Norway
Arendal, Agder, Norway

Thorite var. Uranothorite

Formula: (Th,U)SiO4

Colour: Balck (outside), yellow (Inside)

Titanite

Formula: CaTi(SiO4)O

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

Titanite var. Keilhauite (FRL)

Formula: (Ca,Y3+)(Ti,Al,Fe3+)[SiO4]O

Titanite var. Yttrium-bearing Titanite (FRL)

Formula: (Ca,Y)TiSiO5

Localities:

Feldspar Quarry, Buøya, Arendal, Agder, Norway
Buøya, Arendal, Agder, Norway
Alve Feldspar Quarry, Tromøy, Arendal, Agder, Norway
Narestø Feldspar Quarry, Flosta, Arendal, Agder, Norway

'Tourmaline'

Formula: A D3G6 (T6O18)(BO3)3X3Z

Tremolite

Formula: ◻Ca2Mg5(Si8O22)(OH)2

Uraninite

Formula: UO2

Uraninite var. Cleveite

Formula: UO2

Uranophane

Formula: Ca(UO2)2(SiO3OH)2 · 5H2O

Vesuvianite

Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9

Localities:

Arendal, Agder, Norway
Nødebro Mine (Nøddebro), Øyestad, Arendal, Agder, Norway
Torbjørnsbu Mine, Barbudalen, Arendal, Agder, Norway
Langsæv Mine, Steinsås, Barbudalen, Arendal, Agder, Norway

Description: Schumacher (1801) wrote that vesuvianite was found in "old ages" in Arendal.

Xenotime-(Y)

Formula: Y(PO4)

Localities:

Narestø Feldspar Quarry, Flosta, Arendal, Agder, Norway
Jortjern, Arendal, Agder, Norway
Lofstad Iron Mines, Tromøy, Arendal, Agder, Norway

Description: Brøgger (1883) described twins by (101) from Narestø.

Yttrotantalite-(Y)

Formula: (Y,U,Fe2+)(Ta,Nb)(O,OH)4

Zircon

Formula: Zr(SiO4)

Localities: Reported from at least 14 localities in this region.

Description: The altered zircon described by Breithaupt (1825) as ostranite was used on a zircon from Arendal, probably Langsev mine.

Zircon var. Alvite (FRL)

Formula: Zr(SiO4)

Localities:

Alve Feldspar Quarry, Tromøy, Arendal, Agder, Norway
Hella 1 Feldspar Quarry, Helle, Stokken, Arendal, Agder, Norway
Narestø Feldspar Quarry, Flosta, Arendal, Agder, Norway

Description: A metamict zircon variety.

Zircon var. Oerstedtite (FRL)

Formula: Zr(SiO4)

Localities:

Arendal, Agder, Norway
Buøya, Arendal, Agder, Norway
Stoll Mine, Neskilen Mines, Arendal, Agder, Norway
Solborg Mines, Øyestad, Arendal, Agder, Norway

Zoisite

Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)

Zoisite var. Thulite

Formula: {Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH)