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Juurakko pegmatite, Eräjärvi area, Orivesi, Western and Inner Finland Region, Finland

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Latitude & Longitude (WGS84): 61° 34' 30'' North , 24° 31' 36'' East
Latitude & Longitude (decimal): 61.57510,24.52670
GeoHash:G#: udcqq17uc
Locality type:Pegmatite
Köppen climate type:Dfc : Subarctic climate


Granitic pegmatite

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Standard Detailed Strunz Dana Chemical Elements

Mineral List


23 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314
'Apatite'
Reference: Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
Arsenopyrite
Formula: FeAsS
Reference: Joel Dyer photo.
Bertrandite
Formula: Be4(Si2O7)(OH)2
Reference: Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314
Beryl
Formula: Be3Al2(Si6O18)
Reference: Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314
Cassiterite
Formula: SnO2
Reference: Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
Chalcopyrite
Formula: CuFeS2
Reference: Jouni Laurinperä Photo, ID: 879296
'Chlorite Group'
Reference: Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314
Columbite-(Fe)
Formula: FeNb2O6
Reference: Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
Columbite-(Mn)
Formula: (Mn,Fe)(Nb,Ta)2O6
Reference: Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
Galena
Formula: PbS
Reference: JL collection
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314
Graphite
Formula: C
Reference: Lahti, S. (2000)
Ixiolite
Formula: (Ta,Nb,Sn,Fe,Mn)4O8
Reference: Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
'K Feldspar'
Reference: Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314
'Lepidolite'
Reference: Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314
Löllingite
Formula: FeAs2
Reference: PRECAMBRIAN GRANITOIDS Petrogenesis, geochemistry and metallogeny August 14-17, 1989, University of Helsinki, Finland
Marcasite
Formula: FeS2
Reference: Joel Dyer collection
Margarite
Formula: CaAl2(Al2Si2O10)(OH)2
Reference: Lahti, Seppo 1988. Occurrence and mineralogy of the margarite- and muscovite-bearing pseudomorphs after topaz in the Juurakko pegmatite, Orivesi, southern Finland. The Geological Society of Finland, Volume 60 (1–2)
Molybdenite
Formula: MoS2
Reference: Lahti, S. (2000)
Monazite-(Ce)
Formula: Ce(PO4)
Reference: Ilkka Mikkola collection
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314
'Pegmatite'
Reference: Automatically generated from locality name
Pyrite
Formula: FeS2
Reference: Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
'Pyrobitumen'
Reference: Lahti, S. (2000)
'Pyrobitumen var: Thucholite'
Reference: Lahti, S. (2000)
Pyrochlore Supergroup
Formula: A2-mD2X6-wZ1-n
Reference: Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
Pyrrhotite
Formula: Fe7S8
Reference: PRECAMBRIAN GRANITOIDS Petrogenesis, geochemistry and metallogeny August 14-17, 1989, University of Helsinki, Finland
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
Sphalerite
Formula: ZnS
Reference: PRECAMBRIAN GRANITOIDS Petrogenesis, geochemistry and metallogeny August 14-17, 1989, University of Helsinki, Finland
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314
Zircon
Formula: Zr(SiO4)
Reference: Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Graphite'1.CB.05aC
Group 2 - Sulphides and Sulfosalts
'Arsenopyrite'2.EB.20FeAsS
'Chalcopyrite'2.CB.10aCuFeS2
'Galena'2.CD.10PbS
'Löllingite'2.EB.15aFeAs2
'Marcasite'2.EB.10aFeS2
'Molybdenite'2.EA.30MoS2
'Pyrite'2.EB.05aFeS2
'Pyrrhotite'2.CC.10Fe7S8
'Sphalerite'2.CB.05aZnS
Group 4 - Oxides and Hydroxides
'Cassiterite'4.DB.05SnO2
'Columbite-(Fe)'4.DB.35FeNb2O6
'Columbite-(Mn)'4.DB.35(Mn,Fe)(Nb,Ta)2O6
'Ixiolite'4.DB.25(Ta,Nb,Sn,Fe,Mn)4O8
Group 8 - Phosphates, Arsenates and Vanadates
'Monazite-(Ce)'8.AD.50Ce(PO4)
Group 9 - Silicates
'Bertrandite'9.BD.05Be4(Si2O7)(OH)2
'Beryl'9.CJ.05Be3Al2(Si6O18)
'Margarite'9.EC.30CaAl2(Al2Si2O10)(OH)2
'Muscovite'9.EC.15KAl2(AlSi3O10)(OH)2
'Schorl'9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
'Topaz'9.AF.35Al2(SiO4)(F,OH)2
'Zircon'9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Apatite'-
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3
'K Feldspar'-
'Lepidolite'-
'Pegmatite'-
'Pyrobitumen'-
'var: Thucholite'-
'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Löllingite2.12.2.9FeAs2
Marcasite2.12.2.1FeS2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
AX2
Cassiterite4.4.1.5SnO2
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Ixiolite8.1.10.1(Ta,Nb,Sn,Fe,Mn)4O8
AB2O6
Columbite-(Fe)8.3.2.2FeNb2O6
Columbite-(Mn)8.3.2.4(Mn,Fe)(Nb,Ta)2O6
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
AXO4
Monazite-(Ce)38.4.3.1Ce(PO4)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
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
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Bertrandite56.1.1.1Be4(Si2O7)(OH)2
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Margarite71.2.2c.1CaAl2(Al2Si2O10)(OH)2
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Apatite'-
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3
'K Feldspar'-
'Lepidolite'-
'Pegmatite'-
'Pyrobitumen'-
'var: Thucholite'-
Pyrochlore Supergroup-A2-mD2X6-wZ1-n
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H BertranditeBe4(Si2O7)(OH)2
H MargariteCaAl2(Al2Si2O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H TopazAl2(SiO4)(F,OH)2
BeBeryllium
Be BertranditeBe4(Si2O7)(OH)2
Be BerylBe3Al2(Si6O18)
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
CCarbon
C GraphiteC
OOxygen
O BertranditeBe4(Si2O7)(OH)2
O BerylBe3Al2(Si6O18)
O CassiteriteSnO2
O Columbite-(Fe)FeNb2O6
O Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
O Garnet GroupX3Z2(SiO4)3
O Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
O MargariteCaAl2(Al2Si2O10)(OH)2
O Monazite-(Ce)Ce(PO4)
O MuscoviteKAl2(AlSi3O10)(OH)2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O TopazAl2(SiO4)(F,OH)2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O ZirconZr(SiO4)
FFluorine
F TopazAl2(SiO4)(F,OH)2
NaSodium
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al BerylBe3Al2(Si6O18)
Al MargariteCaAl2(Al2Si2O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al TopazAl2(SiO4)(F,OH)2
SiSilicon
Si BertranditeBe4(Si2O7)(OH)2
Si BerylBe3Al2(Si6O18)
Si Garnet GroupX3Z2(SiO4)3
Si MargariteCaAl2(Al2Si2O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si TopazAl2(SiO4)(F,OH)2
Si ZirconZr(SiO4)
PPhosphorus
P Monazite-(Ce)Ce(PO4)
SSulfur
S ArsenopyriteFeAsS
S ChalcopyriteCuFeS2
S GalenaPbS
S MarcasiteFeS2
S MolybdeniteMoS2
S PyriteFeS2
S PyrrhotiteFe7S8
S SphaleriteZnS
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca MargariteCaAl2(Al2Si2O10)(OH)2
MnManganese
Mn Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Mn Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
FeIron
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe Columbite-(Fe)FeNb2O6
Fe Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Fe LöllingiteFeAs2
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
As LöllingiteFeAs2
ZrZirconium
Zr ZirconZr(SiO4)
NbNiobium
Nb Columbite-(Fe)FeNb2O6
Nb Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Nb Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
MoMolybdenum
Mo MolybdeniteMoS2
SnTin
Sn CassiteriteSnO2
CeCerium
Ce Monazite-(Ce)Ce(PO4)
TaTantalum
Ta Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Ta Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
PbLead
Pb GalenaPbS

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

Paleoproterozoic
1600 - 2500 Ma



ID: 3184895
Paleoproterozoic sedimentary rocks

Age: Proterozoic (1600 - 2500 Ma)

Lithology: Mica schist; metasedimentary schist

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]

Paleoproterozoic
1600 - 2500 Ma



ID: 658571
Sedimentary; Slope and deep water

Age: Proterozoic (1600 - 2500 Ma)

Description: Northern Europe, Svecofennian and Lapland-Kola orogens

Comments: Orogen, fold-thrust belt, folded region; Koistinen et al., 2001; Sigmond, 2002; Solli, unpublished compilation, 2007-08; Bergman et al., unpublished revisions, 2007-08

Lithology: Greywacke, phyllite, mica schist, meta-arkose, graphitic schist, paragneiss, conglomerate, amphibolite

Reference: J.C. Harrison, M.R. St-Onge, O.V. Petrov, S.I. Strelnikov, B.G. Lopatin, F.H. Wilson, S. Tella, D. Paul, T. Lynds, S.P. Shokalsky, C.K. Hults, S. Bergman, H.F. Jepsen, and A. Solli. Geological map of the Arctic. doi:10.4095/287868. Geological Survey of Canada Map 2159A. [2]

Paleoproterozoic
1600 - 2500 Ma



ID: 3147334
Proterozoic I granite

Age: Proterozoic (1600 - 2500 Ma)

Lithology: Granite

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)
Lahti, S. (1981): On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin of the Geological Society of Finland. 314
Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118

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