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Tangen Feldspar Mine, Kragerø, Telemark, Norwayi
Regional Level Types
Tangen Feldspar MineMine
KragerøMunicipality
TelemarkCounty
NorwayCountry

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Name(s) in local language(s):Tangen bruddet
Latitude & Longitude (WGS84): 58° 52' 17'' North , 9° 21' 11'' East
Latitude & Longitude (decimal): 58.87162,9.35306
GeoHash:G#: u4qwuv68n
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Kragerø5,158 (2016)3.6km
Kil901 (2013)3.7km
Eikeland408 (2012)16.6km
Risør4,475 (2016)18.1km
Gjerstad339 (2010)19.2km


Feldspar and quartz mine located 20 m north of Tangen farm, on the east side of the Kammerfosselven about 3-4 km west of the Kragerø town. The pegmatite which is hosted in amphibolites on the western slope of Mt. Sjåen was an irregular body about 40 m in length and 10-15 m wide.
Especially known for its large crystals of phenakite.
Collecting at the site is prohibited by the owner.

Note to mineral list:
Sharp crystals, often twinned, of columbite found in the cleavelandite zone have been known as columbite-(Mn) for nearly a century. However, new SEM-EDS analyses done on these have shown them to be columbite-(Fe) (Selbekk et al., 2008).

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
ScandinaviaRegion

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


23 valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Bjørlykke, H.(1937):Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
Reference: Bjørlykke, H.(1937):Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16
'Albite-Anorthite Series'
Reference: Green, J.C.(1956): Geology of the Storkollen-Blankenberg area, Kragerø, Norway. Norsk Geologisk Tidsskrift 36, 89-140
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Bjørlykke, H.(1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16
'Apatite'
Reference: Bjørlykke, H.(1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16.
Chalcopyrite
Formula: CuFeS2
Reference: Green, J.C.(1956): Geology of the Storkollen-Blankenberg area, Kragerø, Norway. Norsk Geologisk Tidsskrift 36, 89-140
Columbite-(Fe)
Formula: Fe2+Nb2O6
Reference: Selbekk, R.S., Berg, H.-J.,Folvik, H. & Ellingsen, H.V. (2008): Mineraler i columbitt-tantalittgruppen fra Norge. Norsk Bergverksmuseum Skrift. 38, 33-36.
'Columbite-(Fe)-Columbite-(Mn) Series'
Description: Some of the poor developed columbites embedded in red felspar has been shown to be intermediate between columbite-(Fe) and columbite-(Mn) in composition
Reference: Selbekk, R.S., Berg, H.-J.,Folvik, H. & Ellingsen, H.V. (2008): Mineraler i columbitt-tantalittgruppen fra Norge. Norsk Bergverksmuseum Skrift. 38, 33-36.
Columbite-(Mn)
Formula: Mn2+Nb2O6
Description: Newer SEM/EDS analysis done on these has showed them to be columbite-(Fe). (Selbekk et al 2008)
Reference: Bjørlykke, H.(1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16.+ Neumann, H. (1985): Norges Mineraler. Norges Geologiske Undersøkelse Skrifter 68, p. 77.
Danburite
Formula: CaB2Si2O8
Description: 2 specimens in the collection of the Mineralogisk-Geologisk Museum in Oslo, collected by Peder Tangen during 1906-1908. There are some uncertainty of the right locality of the specimens, Oftedal (1963) concludes that Tangen is the most probably one
Reference: Oftedal, I. (1963): Contributions to the mineralogy of Norway No 16. Danburite from the Kragerø District. Norsk Geologisk Tidsskrift 43, 73-74
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Reference: Bjørlykke, H. (1931): Ein betafitmineral von Tangen bei Kragerö. Norsk Geologisk Tidsskrift. 12, 73-88
Hematite
Formula: Fe2O3
Reference: Bjørlykke, H.(1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16
Hingganite-(Yb)
Formula: (Yb,Y,REE)2□Be2[SiO4]2(OH)2
Description: As a chalc-like pseudomorphic columnar mineral, up to 3 cm , in pure quartz. The pseudomorphose after an unknown mineral consist of hingganite-(Yb) (confirmed by XRD), and the materiale is often contaminated by small amounts of kainosite-(Y). The total REE is dominated by Yb and Y.
Reference: Kristiansen, R. (1994): To nye mineraler for Norge- manganokolumbitt og hingganitt-(Yb). STEIN 21 (2), 88-93
Kainosite-(Y)
Formula: Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Reference: Neumann, H. (1985): Norges Mineraler. Norges Geologiske Undersøkelse Skrifter 68, p. 102
Kamphaugite-(Y)
Formula: Ca(Y,REE)(CO3)2(OH) · H2O
Description: As well-crystallized rosettes in cracks along quartz and feldspar.
Reference: Raade, G. & Brastad, K.(1993): Kamphaugite-(Y), a new hydrous Ca-(Y-REE)-carbonate mineral. European Journal of Mineralogy. 5, 679-683 + Ljøstad, O.T. (1994): Kamphaugitt-(Y)- det nyest beskrevne mineralet fra Norge. STEIN 21 (2), 143-144
Lokkaite-(Y)
Formula: Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
Reference: Kristiansen, R. (1978): Lokkaitt, (Y,Ca)2(CO3)3 x 2H2O, ett nytt mineral for Norge. NAGS-nytt 5(4), 26-27 (in norwegian9
Magnetite
Formula: Fe2+Fe3+2O4
Habit: nodular masses
Reference: Bjørlykke, H.(1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16.
Microcline
Formula: K(AlSi3O8)
Reference: Bjørlykke, H.(1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16.
'Monazite'
Reference: Bjørlykke, H. (1931): Ein betafitmineral von Tangen bei Kragerö. Norsk Geologisk Tidsskrift. 12, 73-88
Parisite-(Ce)
Formula: CaCe2(CO3)3F2
Description: Found as nice honey-yellow crystals to 2mm thick and 2-3mm long.
Reference: Neumann, H. (1985): Norges Mineraler. Norges Geologiske Undersøkelse Skrifter 68, p. 100.
Phenakite
Formula: Be2SiO4
Habit: elongated prismatic
Colour: colorless, white
Description: Phenakite occure as crystals in quartz or albite.
Reference: Hintze, C. (1897): Ueber krystallisirten Phenakit aus Schlesien. Zeitschrift für Kristallographie und Mineralogie. 28, 174-176 ( p. 176); Bäckstrom, H. (1898): Fenakit från Kragerø. Geologiska Föreningen i Stockholm Förhandlingar. 20, 295-303
Pyrite
Formula: FeS2
Reference: Green, J.C.(1956): Geology of the Storkollen-Blankenberg area, Kragerø, Norway. Norsk Geologisk Tidsskrift 36, 89-140
'Pyrochlore Supergroup'
Formula: A2-mD2X6-wZ1-n
Habit: {111},{110}, masses
Colour: Greenish-black, Brownish-yellow
Description: Ti-rich (to 35% TiO2).
Reference: Bjørlykke, H. (1931): Ein betafitmineral von Tangen bei Kragerö. Norsk Geologisk Tidsskrift. 12, 73-88; Oftedal,I.(1940): On the occurence of tin in Norwegian minerals. Norsk Geologisk Tidskrift. 19, 314-325; Rocks & Min.: 15:77.
'Pyrochlore Supergroup var: Betafite (of Hogarth 1977)'
Formula: A2-mD2X6-wZ1+w
Habit: {111},{110}, masses
Colour: Greenish-black, Brownish-yellow
Description: Ti-rich (to 35% TiO2).
Reference: Bjørlykke, H. (1931): Ein betafitmineral von Tangen bei Kragerö. Norsk Geologisk Tidsskrift. 12, 73-88; Oftedal,I.(1940): On the occurence of tin in Norwegian minerals. Norsk Geologisk Tidskrift. 19, 314-325; Rocks & Min.: 15:77.
'Pyrochlore Supergroup var: Tangenite'
Formula: A2-mD2X6-wZ1-n
Reference: Bjørlykke, H. (1931): Ein betafitmineral von tangen bei Kragerö. Norsk Geologisk Tidsskrift, 12: 73-88; Am. Mineral. 62, 403
Quartz
Formula: SiO2
Reference: Green, J.C.(1956): Geology of the Storkollen-Blankenberg area, Kragerø, Norway. Norsk Geologisk Tidsskrift 36, 89-140
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Bjørlykke, H.(1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16.
Sylvite
Formula: KCl
Description: As 10-100 µm large perfect cubes in inclusions in phenakite.
Reference: Larsen, K. E. (2018): Noen funn av mineraler i Norge 2017 - 2018. Norsk Mineralsymposium 2018: 105-114 [Jan Braly Kihle communication april 2018]
Tengerite-(Y) ?
Formula: Y2(CO3)3 · 2-3H2O
Description: Identified before tengerite-(Y) was redefined.
Reference: Neumann, H. (1985): Norges Mineraler. Norges Geologiske Undersøkelse Skrifter 68 p. 102.
Thorite
Formula: Th(SiO4)
Reference: Bjørlykke, H.(1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16.
Thorite var: Orangite
Formula: Th(SiO4)
Reference: Green, J.C.(1956): Geology of the Storkollen-Blankenberg area, Kragerø, Norway. Norsk Geologisk Tidsskrift 36, 89-140
Titanite
Formula: CaTi(SiO4)O
Reference: Bjørlykke, H.(1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16.
Titanite var: Yttrian Titanite
Formula: (Ca,Y)TiSiO5
Reference: Bjørlykke, H.(1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16.
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Bjørlykke, H.(1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16
Zircon
Formula: Zr(SiO4)
Reference: Andersen, O. (1924) Statsgeologenes innberetninger for 1923. I. Kragerø omegn. Norges Geologiske Undersøkelse 122. Årbok for 1923, p. 9- 18
Zircon var: Alvite
Formula: Zr(SiO4)
Description: Highest values for Hf content in "alvites" from Tangen measured is about 15% (Andersen 1924, p 18).
Reference: Andersen, O. (1924) Statsgeologenes innberetninger for 1923. I. Kragerø omegn. Norges Geologiske Undersøkelse 122. Årbok for 1923, p. 9- 18

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 3 - Halides
Sylvite3.AA.20KCl
Group 4 - Oxides and Hydroxides
Columbite-(Fe)4.DB.35Fe2+Nb2O6
Columbite-(Mn) ?4.DB.35Mn2+Nb2O6
Euxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Hematite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Kamphaugite-(Y)5.DC.10Ca(Y,REE)(CO3)2(OH) · H2O
Lokkaite-(Y)5.CC.15Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
Parisite-(Ce)5.BD.20bCaCe2(CO3)3F2
Tengerite-(Y) ?5.CC.10Y2(CO3)3 · 2-3H2O
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var: Cleavelandite9.FA.35Na(AlSi3O8)
Danburite9.FA.65CaB2Si2O8
Hingganite-(Yb)9.AJ.20(Yb,Y,REE)2□Be2[SiO4]2(OH)2
Kainosite-(Y)9.CF.10Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Microcline9.FA.30K(AlSi3O8)
Phenakite9.AA.05Be2SiO4
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Thorite9.AD.30Th(SiO4)
var: Orangite9.AD.30Th(SiO4)
Titanite9.AG.15CaTi(SiO4)O
var: Yttrian Titanite9.AG.15(Ca,Y)TiSiO5
Topaz9.AF.35Al2(SiO4)(F,OH)2
Zircon9.AD.30Zr(SiO4)
var: Alvite9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Apatite'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Monazite'-
'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
'var: Betafite (of Hogarth 1977)'-A2-mD2X6-wZ1+w
'var: Tangenite'-A2-mD2X6-wZ1-n

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
A2B2O6(O,OH,F)
'Pyrochlore Supergroup
var: Betafite (of Hogarth 1977)'
8.2.3.1A2-mD2X6-wZ1+w
AB2O6
Columbite-(Fe)8.3.2.2Fe2+Nb2O6
Columbite-(Mn) ?8.3.2.4Mn2+Nb2O6
Euxenite-(Y)8.3.8.2(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Group 9 - NORMAL HALIDES
AX
Sylvite9.1.1.2KCl
Group 15 - HYDRATED NORMAL CARBONATES
AmBn(XO3)p·xH2O, with (m+n):p < 1:1
Lokkaite-(Y)15.4.4.1Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
Tengerite-(Y) ?15.4.3.1Y2(CO3)3 · 2-3H2O
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Parisite-(Ce)16a.1.5.1CaCe2(CO3)3F2
Group 16b - HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
Kamphaugite-(Y)16b.1.7.1Ca(Y,REE)(CO3)2(OH) · H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [4] coordination
Phenakite51.1.1.1Be2SiO4
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 [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
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 B in [4] coordination
Hingganite-(Yb)54.2.1a.4(Yb,Y,REE)2□Be2[SiO4]2(OH)2
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with[Si2O7] with borate groups
Danburite56.3.1.1CaB2Si2O8
Group 60 - CYCLOSILICATES Four-Membered Rings
Four-Membered Rings with other anion groups
Kainosite-(Y)60.2.1.1Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
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, Mixtures, etc.
Albite
var: Cleavelandite
-Na(AlSi3O8)
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Apatite'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Monazite'-
'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
'var: Tangenite'-A2-mD2X6-wZ1-n
Thorite
var: Orangite
-Th(SiO4)
Titanite
var: Yttrian Titanite
-(Ca,Y)TiSiO5
Zircon
var: Alvite
-Zr(SiO4)

List of minerals for each chemical element

HHydrogen
H Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
H Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
H Kamphaugite-(Y)Ca(Y,REE)(CO3)2(OH) · H2O
H Hingganite-(Yb)(Yb,Y,REE)2□Be2[SiO4]2(OH)2
H TopazAl2(SiO4)(F,OH)2
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H Tengerite-(Y)Y2(CO3)3 · 2-3H2O
BeBeryllium
Be PhenakiteBe2SiO4
Be Hingganite-(Yb)(Yb,Y,REE)2□Be2[SiO4]2(OH)2
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
B DanburiteCaB2Si2O8
CCarbon
C Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
C Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
C Kamphaugite-(Y)Ca(Y,REE)(CO3)2(OH) · H2O
C Parisite-(Ce)CaCe2(CO3)3F2
C Tengerite-(Y)Y2(CO3)3 · 2-3H2O
OOxygen
O PhenakiteBe2SiO4
O ZirconZr(SiO4)
O MagnetiteFe2+Fe23+O4
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
O Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
O Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
O Kamphaugite-(Y)Ca(Y,REE)(CO3)2(OH) · H2O
O Hingganite-(Yb)(Yb,Y,REE)2□Be2[SiO4]2(OH)2
O HematiteFe2O3
O Albite (var: Cleavelandite)Na(AlSi3O8)
O Parisite-(Ce)CaCe2(CO3)3F2
O TopazAl2(SiO4)(F,OH)2
O MicroclineK(AlSi3O8)
O QuartzSiO2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O Titanite (var: Yttrian Titanite)(Ca,Y)TiSiO5
O ThoriteTh(SiO4)
O Thorite (var: Orangite)Th(SiO4)
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O DanburiteCaB2Si2O8
O Zircon (var: Alvite)Zr(SiO4)
O Columbite-(Fe)Fe2+Nb2O6
O AlbiteNa(AlSi3O8)
O TitaniteCaTi(SiO4)O
O Tengerite-(Y)Y2(CO3)3 · 2-3H2O
O Columbite-(Mn)Mn2+Nb2O6
FFluorine
F Parisite-(Ce)CaCe2(CO3)3F2
F TopazAl2(SiO4)(F,OH)2
NaSodium
Na Albite (var: Cleavelandite)Na(AlSi3O8)
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Na AlbiteNa(AlSi3O8)
AlAluminium
Al Albite (var: Cleavelandite)Na(AlSi3O8)
Al TopazAl2(SiO4)(F,OH)2
Al MicroclineK(AlSi3O8)
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al AlbiteNa(AlSi3O8)
SiSilicon
Si PhenakiteBe2SiO4
Si ZirconZr(SiO4)
Si Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Si Hingganite-(Yb)(Yb,Y,REE)2□Be2[SiO4]2(OH)2
Si Albite (var: Cleavelandite)Na(AlSi3O8)
Si TopazAl2(SiO4)(F,OH)2
Si MicroclineK(AlSi3O8)
Si QuartzSiO2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si Titanite (var: Yttrian Titanite)(Ca,Y)TiSiO5
Si ThoriteTh(SiO4)
Si Thorite (var: Orangite)Th(SiO4)
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si DanburiteCaB2Si2O8
Si Zircon (var: Alvite)Zr(SiO4)
Si AlbiteNa(AlSi3O8)
Si TitaniteCaTi(SiO4)O
SSulfur
S PyriteFeS2
S ChalcopyriteCuFeS2
ClChlorine
Cl SylviteKCl
KPotassium
K MicroclineK(AlSi3O8)
K SylviteKCl
CaCalcium
Ca Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ca Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Ca Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
Ca Kamphaugite-(Y)Ca(Y,REE)(CO3)2(OH) · H2O
Ca Parisite-(Ce)CaCe2(CO3)3F2
Ca Titanite (var: Yttrian Titanite)(Ca,Y)TiSiO5
Ca DanburiteCaB2Si2O8
Ca TitaniteCaTi(SiO4)O
TiTitanium
Ti Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ti Titanite (var: Yttrian Titanite)(Ca,Y)TiSiO5
Ti TitaniteCaTi(SiO4)O
MnManganese
Mn Columbite-(Mn)Mn2+Nb2O6
FeIron
Fe MagnetiteFe2+Fe23+O4
Fe HematiteFe2O3
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe Columbite-(Fe)Fe2+Nb2O6
CuCopper
Cu ChalcopyriteCuFeS2
YYttrium
Y Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Y Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Y Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
Y Kamphaugite-(Y)Ca(Y,REE)(CO3)2(OH) · H2O
Y Hingganite-(Yb)(Yb,Y,REE)2□Be2[SiO4]2(OH)2
Y Titanite (var: Yttrian Titanite)(Ca,Y)TiSiO5
Y Tengerite-(Y)Y2(CO3)3 · 2-3H2O
ZrZirconium
Zr ZirconZr(SiO4)
Zr Zircon (var: Alvite)Zr(SiO4)
NbNiobium
Nb Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Nb Columbite-(Fe)Fe2+Nb2O6
Nb Columbite-(Mn)Mn2+Nb2O6
CeCerium
Ce Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ce Parisite-(Ce)CaCe2(CO3)3F2
NdNeodymium
Nd Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
GdGadolinium
Gd Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
DyDysprosium
Dy Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2O
YbYtterbium
Yb Hingganite-(Yb)(Yb,Y,REE)2□Be2[SiO4]2(OH)2
TaTantalum
Ta Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ThThorium
Th Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Th ThoriteTh(SiO4)
Th Thorite (var: Orangite)Th(SiO4)
UUranium
U Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Proterozoic
541 - 2500 Ma



ID: 3186372
Proterozoic crystalline metamorphic rocks

Age: Proterozoic (541 - 2500 Ma)

Lithology: Granitoid gneiss; orthogneiss/paragneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Mesoproterozoic - Paleoproterozoic
1000 - 2500 Ma



ID: 3159197
Proterozoic I gabbro

Age: Proterozoic (1000 - 2500 Ma)

Description: undifferentiated metamorphic

Lithology: Major:{gabbro}, Minor{diorite,plutonic ultramafic group,meta-gabbro}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Hintze, C. (1897) Ueber krystallisirten Phenakit aus Schlesien. Zeitschrift für Kristallographie und Mineralogie 28, 174-176 [p. 176 on phenakite from Tangen].
Bäckstrom, H. (1898) Fenakit från Kragerø. Geologiska Föreningen i Stockholm Förhandlingar 20, 295-303.
Goldschmidt, V.M. and Thomassen, L. (1923) Das Vorkommen des Elements No. 72 (Hafnium) im Malakon und Alvit. Norsk Geologisk Tidsskrift 7, 61-68 [with analysis of alvite from Tangen].
Andersen, O. (1924) Statsgeologenes innberetninger for 1923. I. Kragerø omegn. Norges Geologiske Undersøkelse 122. Årbok for 1923, 9-18.
Bjørlykke, H. (1931) Ein betafitmineral von Tangen bei Kragerö. Norsk Geologisk Tidsskrift 12, 73-88.
Bjørlykke, H. (1937) Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16.
Green, J.C. (1956) Geology of the Storkollen-Blankenberg area, Kragerø, Norway. Norsk Geologisk Tidsskrift 36, 89-140.
Oftedal, I. (1963) Contributions to the mineralogy of Norway No 16. Danburite from the Kragerø District. Norsk Geologisk Tidsskrift 43, 73-74.
Kristiansen, R. (1978) Lokkaitt, (Y,Ca)2(CO3)3 x 2H2O, ett nytt mineral for Norge. NAGS-nytt 5(4), 26-27 (in Norwegian).
Kristiansen, R. (1994) To nye mineraler for Norge- manganokolumbitt og hingganitt-(Yb). STEIN 21 (2), 88-93.
Ljøstad, O.T. (1994) Kamphaugitt-(Y)- det nyest beskrevne mineralet fra Norge. STEIN 21 (2), 143-144.
Selbekk, R.S., Berg, H.-J., Folvik, H., and Ellingsen, H.V. (2008) Mineraler i columbitt-tantalittgruppen fra Norge. Norsk Bergverksmuseum Skrift 38, 33-36.
Rocks & Minerals: 15: 77.
Larsen, K.E. (2018) Noen funn av mineraler i Norge 2017 - 2018. Norsk Mineralsymposium 2018: 105-114 [A note on a find of inclusions of sylvite in phenakite on p. 106].

External Links



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