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Tvedestrand, Aust-Agder, Norway

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Name(s) in local language(s):Tvedestrand kommune, Aust-Agder fylke, Norge
Neighbouring regions:
Locality type:Municipality
Museums in region:


Famous for cordierite and sunstone specimens. Especially known is sunstone (aventurine feldspar) from the classical, now abandoned Østerådalen locality, (often labelled just "Tvedestrand"). This sunstone is by some considered to be the best in the world.

There has also been numerous feldspar/quartz quartz quarries in Tvedestrand, but since they were active during the 1800's, they are overgrown and mostly forgotten.

Map studies have resulted in finding back some of them with certainty. Others are impossible to find back or need field confirmation.

It turns out to be difficult/impossible to identify some of the localities described in old literature.

That implies that the names given to the localities here at Mindat cannot be fully trusted. Further study is required!

Regions containing this locality

Scandinavia

Region - 2,031 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

37 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
'Albite-Anorthite Series'
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: Weibye, P. C. (1848): Beiträge zur topograpischen Mineralologie Norwegens. Archiv für Mineralogie, Geognosie, Bergbau und Hüttenkunde. 22: 465-544
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'
Arsenopyrite
Formula: FeAsS
'Biotite'
Bornite
Formula: Cu5FeS4
Reference: Weibye, P. C. (1848): Beiträge zur topograpischen Mineralologie Norwegens. Archiv für Mineralogie, Geognosie, Bergbau und Hüttenkunde. 22: 465-544
Calcite
Formula: CaCO3
Chalcopyrite
Formula: CuFeS2
Reference: Weibye, P. C. (1848): Beiträge zur topograpischen Mineralologie Norwegens. Archiv für Mineralogie, Geognosie, Bergbau und Hüttenkunde. 22: 465-544
'Chlorite Group'
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Weibye, P. C. (1848): Beiträge zur topograpischen Mineralologie Norwegens. Archiv für Mineralogie, Geognosie, Bergbau und Hüttenkunde. 22: 465-544
Corundum
Formula: Al2O3
Diopside
Formula: CaMgSi2O6
Dumortierite
Formula: (Al,Fe3+)7(SiO4)3(BO3)O3
Enstatite
Formula: MgSiO3
'commodity:Feldspar'
'Feldspar Group'
'Fergusonite'
'Garnet Group'
Formula: X3Z2(SiO4)3
Gedrite
Formula: ☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Graphite
Formula: C
Hematite
Formula: Fe2O3
Hercynite
Formula: Fe2+Al2O4
'Högbomite'
Formula: (Mg,Fe)2(Al,Ti)5O10
'Hornblende'
Reference: Weibye, P. C. (1848): Beiträge zur topograpischen Mineralologie Norwegens. Archiv für Mineralogie, Geognosie, Bergbau und Hüttenkunde. 22: 465-544
'Hypersthene'
Formula: (Mg,Fe)SiO3
Reference: Weibye, P. C. (1848): Beiträge zur topograpischen Mineralologie Norwegens. Archiv für Mineralogie, Geognosie, Bergbau und Hüttenkunde. 22: 465-544
Ilmenite
Formula: Fe2+TiO3
'commodity:Iron'
Formula: Fe
Magnetite
Formula: Fe2+Fe3+2O4
Microcline
Formula: K(AlSi3O8)
'Monazite'
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: No reference listed
Muscovite var: Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Reference: No reference listed
'Orthopyroxene Subgroup'
Pentlandite
Formula: (FexNiy)Σ9S8
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Pyrite
Formula: FeS2
Pyrrhotite
Formula: Fe7S8
Quartz
Formula: SiO2
Rutile
Formula: TiO2
Rutile var: Ilmenorutile
Formula: Fex(Nb,Ta)2x · 4Ti1-xO2
Samarskite-(Y)
Formula: (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Sapphirine
Formula: Mg4(Mg3Al9)O4[Si3Al9O36]
'Scapolite'
Sillimanite
Formula: Al2(SiO4)O
Silver
Formula: Ag
Spinel
Formula: MgAl2O4
Sulphur
Formula: S8
'Sunstone'
Thorite
Formula: Th(SiO4)
Reference: Gleditsch, E. & Quiller, B. (1932): Investigations of uranothorites from the Arendal district, Norway. Philosophical Magazine Series 7, 14: 233-243
Thorite var: Orangite
Formula: Th(SiO4)
Titanite
Formula: CaTi(SiO4)O
Titanite var: Yttrian Titanite
Formula: (Ca,Y)TiSiO5
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Uraninite
Formula: UO2
Uraninite var: Thorian Uraninite
Formula: (U,Th)O2
Violarite
Formula: Fe2+Ni3+2S4
Xenotime-(Y)
Formula: Y(PO4)
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 690.
Zircon
Formula: Zr(SiO4)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Graphite'1.CB.05aC
Silver1.AA.05Ag
Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
'Arsenopyrite'2.EB.20FeAsS
'Bornite'2.BA.15Cu5FeS4
'Chalcopyrite'2.CB.10aCuFeS2
Pentlandite2.BB.15(FexNiy)Σ9S8
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Violarite2.DA.05Fe2+Ni3+2S4
Group 4 - Oxides and Hydroxides
'Corundum'4.CB.05Al2O3
'Hematite'4.CB.05Fe2O3
'Hercynite'4.BB.05Fe2+Al2O4
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
var: Ilmenorutile4.DB.05Fex(Nb,Ta)2x · 4Ti1-xO2
Samarskite-(Y)4.DB.25(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Spinel4.BB.05MgAl2O4
Uraninite4.DL.05UO2
var: Thorian Uraninite4.DL.05(U,Th)O2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
Group 8 - Phosphates, Arsenates and Vanadates
Xenotime-(Y)8.AD.35Y(PO4)
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
var: Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
'Almandine'9.AD.25Fe2+3Al2(SiO4)3
'Cordierite'9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
'Diopside'9.DA.15CaMgSi2O6
'Dumortierite'9.AJ.10(Al,Fe3+)7(SiO4)3(BO3)O3
'Enstatite'9.DA.05MgSiO3
'Gedrite'9.DD.05☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Sapphirine9.DH.45Mg4(Mg3Al9)O4[Si3Al9O36]
Sillimanite9.AF.05Al2(SiO4)O
Thorite9.AD.30Th(SiO4)
var: Orangite9.AD.30Th(SiO4)
Titanite9.AG.15CaTi(SiO4)O
var: Yttrian Titanite9.AG.15(Ca,Y)TiSiO5
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'-
'Biotite'-
'Chlorite Group'-
'Feldspar Group'-
'Fergusonite'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende'-
'Hypersthene'-(Mg,Fe)SiO3
'Högbomite'-(Mg,Fe)2(Al,Ti)5O10
Monazite-
Orthopyroxene Subgroup-
Scapolite-
Sunstone-
Tourmaline-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Silver1.1.1.2Ag
Semi-metals and non-metals
Graphite1.3.6.2C
Sulphur1.3.5.1S8
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmBnXp, with (m+n):p = 9:8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 3:4
Violarite2.10.1.8Fe2+Ni3+2S4
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
var: Ilmenorutile4.4.1.2Fex(Nb,Ta)2x · 4Ti1-xO2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 7 - MULTIPLE OXIDES
AB2X4
Hercynite7.2.1.3Fe2+Al2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
Miscellaneous
'Högbomite'7.11.7.3(Mg,Fe)2(Al,Ti)5O10
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Samarskite-(Y)8.1.11.1(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Thorite51.5.2.3Th(SiO4)
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Sillimanite52.2.2a.1Al2(SiO4)O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 54 - NESOSILICATES Borosilicates and Some Beryllosilicates
Borosilicates and Some Beryllosilicates with (BO3)
Dumortierite54.1.2.1(Al,Fe3+)7(SiO4)3(BO3)O3
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Enstatite65.1.2.1MgSiO3
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Gedrite66.1.2.5☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Group 69 - INOSILICATES Chains with Side Branches or Loops
Chains with Side Branches or Loops with P>2
Sapphirine69.2.1b.1Mg4(Mg3Al9)O4[Si3Al9O36]
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
var: Illite71.2.2d.2K0.65Al2.0[Al0.65Si3.35O10](OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
Albite
var: Oligoclase
-(Na,Ca)[Al(Si,Al)Si2O8]
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'-
'Biotite'-
'Chlorite Group'-
'Feldspar Group'-
'Fergusonite'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende'-
'Hypersthene'-(Mg,Fe)SiO3
'Monazite'-
'Orthopyroxene Subgroup'-
'Scapolite'-
'Sunstone'-
Thorite
var: Orangite
-Th(SiO4)
Titanite
var: Yttrian Titanite
-(Ca,Y)TiSiO5
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
Uraninite
var: Thorian Uraninite
-(U,Th)O2
Xenotime-(Y)-Y(PO4)

List of minerals for each chemical element

HHydrogen
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
H Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H PhlogopiteKMg3(AlSi3O10)(OH)2
BBoron
B Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
CCarbon
C CalciteCaCO3
C GraphiteC
OOxygen
O AlbiteNa(AlSi3O8)
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O AlmandineFe32+Al2(SiO4)3
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O CalciteCaCO3
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O CorundumAl2O3
O DiopsideCaMgSi2O6
O Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3
O EnstatiteMgSiO3
O Garnet GroupX3Z2(SiO4)3
O Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
O HematiteFe2O3
O HercyniteFe2+Al2O4
O Högbomite(Mg,Fe)2(Al,Ti)5O10
O Hypersthene(Mg,Fe)SiO3
O Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
O IlmeniteFe2+TiO3
O Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
O MagnetiteFe2+Fe23+O4
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
O Thorite (var: Orangite)Th(SiO4)
O PhlogopiteKMg3(AlSi3O10)(OH)2
O QuartzSiO2
O RutileTiO2
O Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
O SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
O SillimaniteAl2(SiO4)O
O SpinelMgAl2O4
O Uraninite (var: Thorian Uraninite)(U,Th)O2
O ThoriteTh(SiO4)
O TitaniteCaTi(SiO4)O
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O UraniniteUO2
O Xenotime-(Y)Y(PO4)
O Titanite (var: Yttrian Titanite)(Ca,Y)TiSiO5
O ZirconZr(SiO4)
FFluorine
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
NaSodium
Na AlbiteNa(AlSi3O8)
Na Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
MgMagnesium
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg DiopsideCaMgSi2O6
Mg EnstatiteMgSiO3
Mg Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Mg Högbomite(Mg,Fe)2(Al,Ti)5O10
Mg Hypersthene(Mg,Fe)SiO3
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Mg SpinelMgAl2O4
AlAluminium
Al AlbiteNa(AlSi3O8)
Al AlmandineFe32+Al2(SiO4)3
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al CorundumAl2O3
Al Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3
Al Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Al HercyniteFe2+Al2O4
Al Högbomite(Mg,Fe)2(Al,Ti)5O10
Al Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Al SillimaniteAl2(SiO4)O
Al SpinelMgAl2O4
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si AlmandineFe32+Al2(SiO4)3
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si DiopsideCaMgSi2O6
Si Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3
Si EnstatiteMgSiO3
Si Garnet GroupX3Z2(SiO4)3
Si Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Si Hypersthene(Mg,Fe)SiO3
Si Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Si Thorite (var: Orangite)Th(SiO4)
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si QuartzSiO2
Si SapphirineMg4(Mg3Al9)O4[Si3Al9O36]
Si SillimaniteAl2(SiO4)O
Si ThoriteTh(SiO4)
Si TitaniteCaTi(SiO4)O
Si Titanite (var: Yttrian Titanite)(Ca,Y)TiSiO5
Si ZirconZr(SiO4)
PPhosphorus
P Xenotime-(Y)Y(PO4)
SSulfur
S ArsenopyriteFeAsS
S BorniteCu5FeS4
S ChalcopyriteCuFeS2
S Pentlandite(FexNiy)Σ9S8
S PyriteFeS2
S PyrrhotiteFe7S8
S SulphurS8
S ViolariteFe2+Ni23+S4
ClChlorine
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
K Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Ca CalciteCaCO3
Ca DiopsideCaMgSi2O6
Ca Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Ca Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Ca TitaniteCaTi(SiO4)O
Ca Titanite (var: Yttrian Titanite)(Ca,Y)TiSiO5
TiTitanium
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti Högbomite(Mg,Fe)2(Al,Ti)5O10
Ti IlmeniteFe2+TiO3
Ti Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
Ti Titanite (var: Yttrian Titanite)(Ca,Y)TiSiO5
FeIron
Fe AlmandineFe32+Al2(SiO4)3
Fe ArsenopyriteFeAsS
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe HematiteFe2O3
Fe HercyniteFe2+Al2O4
Fe Högbomite(Mg,Fe)2(Al,Ti)5O10
Fe Hypersthene(Mg,Fe)SiO3
Fe IlmeniteFe2+TiO3
Fe Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
Fe MagnetiteFe2+Fe23+O4
Fe Pentlandite(FexNiy)Σ9S8
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
Fe Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Fe ViolariteFe2+Ni23+S4
NiNickel
Ni Pentlandite(FexNiy)Σ9S8
Ni ViolariteFe2+Ni23+S4
CuCopper
Cu BorniteCu5FeS4
Cu ChalcopyriteCuFeS2
AsArsenic
As ArsenopyriteFeAsS
YYttrium
Y Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Y Xenotime-(Y)Y(PO4)
Y Titanite (var: Yttrian Titanite)(Ca,Y)TiSiO5
ZrZirconium
Zr ZirconZr(SiO4)
NbNiobium
Nb Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
Nb Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
AgSilver
Ag SilverAg
TaTantalum
Ta Rutile (var: Ilmenorutile)Fex(Nb,Ta)2x · 4Ti1-xO2
Ta Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
ThThorium
Th Thorite (var: Orangite)Th(SiO4)
Th Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Th Uraninite (var: Thorian Uraninite)(U,Th)O2
Th ThoriteTh(SiO4)
UUranium
U Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
U Uraninite (var: Thorian Uraninite)(U,Th)O2
U UraniniteUO2

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Weibye, P. C. (1848): Beiträge zur topograpischen Mineralogie Norwegens. Archiv für Mineralogie, Geognosie, Bergbau und Hüttenkunde. 22: 465-544

Localities in this Region
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