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Eptevatnet 02 Thortveitite Quarry, Eptevatnet, Iveland, Agder, Norwayi
Regional Level Types
Eptevatnet 02 Thortveitite QuarryQuarry
EptevatnetLake
IvelandMunicipality
AgderCounty
NorwayCountry

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Key
Latitude & Longitude (WGS84):
58° 31' 17'' North , 7° 55' 25'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Byglandsfjord332 (2014)17.3km
Birkeland2,254 (2010)27.8km
Vennesla10,931 (2014)28.3km
Tveit1,397 (2010)34.0km
Justvik1,630 (2014)36.6km
Other Languages:
Norwegian:
Eptevann 2 thortveitittbrudd, Eptevatnet, Iveland, Agder, Norge


A feldspar quarry (originally a test pit) worked in a granite pegmatite dike located near the Eptevann farm, about 50 m W of the main road. The quarry was originally operated for thortveitite, which is said to have been abundant.

Stensrud (2009) writes that this was probably one of the best thortveitite localities in the world.

In Bjørlykke's time, it was just a tiny quarry, but Stensrud (2009) writes that the quarry was considerably expanded in later years.

Bjørlykke locality n° 85.

Coordinates © Kartverket - https://www.kartverket.no

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Commodity List

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


Mineral List


10 valid minerals.

Rock Types Recorded

Note: 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
Formula: Na(AlSi3O8)
Reference: Schetelig, J. (1922): Thortveitit- Ein scandiumsilikat, (Sc, Y)2Si2O7. in Brøgger, W.C, Vogt, Th. & Schetelig, J. (1922): Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1922. 11, 51-87
Albite var. Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Reference: Schetelig, J. (1922): Thortveitit- Ein scandiumsilikat, (Sc, Y)2Si2O7. in Brøgger, W.C, Vogt, Th. & Schetelig, J. (1922): Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1922. 11, 51-87
'Albite-Anorthite Series'
Reference: Bjørlykke, H. (1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Schetelig, J. (1922): Thortveitit- Ein scandiumsilikat, (Sc, Y)2Si2O7. in Brøgger, W.C, Vogt, Th. & Schetelig, J. (1922): Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1922. 11, 51-87
'Almandine-Spessartine Series'
Reference: Stensrud, S. (2009) De opptredende mineraler på granittpegmatittganger i Iveland og Evje. Unpublished paper based on 4 previous papers written together with Johan Løchen.
Beryl
Formula: Be3Al2(Si6O18)
Reference: Schetelig, J. (1922): Thortveitit- Ein scandiumsilikat, (Sc, Y)2Si2O7. in Brøgger, W.C, Vogt, Th. & Schetelig, J. (1922): Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1922. 11, 51-87
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Bjørlykke, H. (1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Reference: Schetelig, J. (1922): Thortveitit- Ein scandiumsilikat, (Sc, Y)2Si2O7. in Brøgger, W.C, Vogt, Th. & Schetelig, J. (1922): Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1922. 11, 51-87
Fergusonite-(Y)
Formula: YNbO4
Reference: Stensrud, S. (2009) De opptredende mineraler på granittpegmatittganger i Iveland og Evje. Unpublished paper based on 4 previous papers written together with Johan Løchen.
Microcline
Formula: K(AlSi3O8)
Reference: Stensrud, S. (2009) De opptredende mineraler på granittpegmatittganger i Iveland og Evje. Unpublished paper based on 4 previous papers written together with Johan Løchen.
'Monazite'
Reference: Schetelig, J. (1922): Thortveitit- Ein scandiumsilikat, (Sc, Y)2Si2O7. in Brøgger, W.C, Vogt, Th. & Schetelig, J. (1922): Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1922. 11, 51-87
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Bjørlykke, H. (1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311
Quartz
Formula: SiO2
Reference: Bjørlykke, H. (1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311
Rutile
Formula: TiO2
Reference: Schetelig, J. (1913): Mineralogische Studien, I. Norsk Geologisk Tidsskrift 2: 3-37 (p. 11)
Rutile var. Ilmenorutile
Formula: Fex(Nb,Ta)2x · 4Ti1-xO2
Reference: Schetelig, J. (1913): Mineralogische Studien, I. Norsk Geologisk Tidsskrift 2: 3-37 (p. 11)
Thortveitite
Formula: Sc2Si2O7
Habit: Prismatic crystals
Colour: greyish-green
Reference: Schetelig, J. (1922): Thortveitit- Ein scandiumsilikat, (Sc, Y)2Si2O7. in Brøgger, W.C, Vogt, Th. & Schetelig, J. (1922): Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1922. 11, 51-87; Marble, J.P. and Glass, J.J. (1942): Some new data on thortveitite. American Mineralogist 27: 696-698
Xenotime-(Y) ?
Formula: Y(PO4)
Reference: Schetelig, J. (1922): Thortveitit- Ein scandiumsilikat, (Sc, Y)2Si2O7. in Brøgger, W.C, Vogt, Th. & Schetelig, J. (1922): Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1922. 11, 51-87

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Euxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
var. Ilmenorutile4.DB.05Fex(Nb,Ta)2x · 4Ti1-xO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Fergusonite-(Y)7.GA.05YNbO4
Group 8 - Phosphates, Arsenates and Vanadates
Xenotime-(Y) ?8.AD.35Y(PO4)
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var. Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Beryl9.CJ.05Be3Al2(Si6O18)
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Thortveitite9.BC.05Sc2Si2O7
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Almandine-Spessartine Series'-
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Monazite'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
AX2
Rutile4.4.1.1TiO2
var. Ilmenorutile4.4.1.2Fex(Nb,Ta)2x · 4Ti1-xO2
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Fergusonite-(Y)8.1.1.1YNbO4
AB2O6
Euxenite-(Y)8.3.8.2(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Group 55 - SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
Si2O7 Groups, Generally with no Additional Anions with cations in [6] coordination
Thortveitite55.2.1a.4Sc2Si2O7
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(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, Mixtures, etc.
Albite
var. Oligoclase
-(Na,Ca)[Al(Si,Al)Si2O8]
'Albite-Anorthite Series'-
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Almandine-Spessartine Series'-
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Monazite'-
Xenotime-(Y) ?-Y(PO4)

List of minerals for each chemical element

HHydrogen
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H MuscoviteKAl2(AlSi3O10)(OH)2
BeBeryllium
Be BerylBe3Al2(Si6O18)
OOxygen
O Rutile var. IlmenorutileFex(Nb,Ta)2x · 4Ti1-xO2
O ThortveititeSc2Si2O7
O Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
O QuartzSiO2
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
O BerylBe3Al2(Si6O18)
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O MuscoviteKAl2(AlSi3O10)(OH)2
O RutileTiO2
O AlbiteNa(AlSi3O8)
O MicroclineK(AlSi3O8)
O Fergusonite-(Y)YNbO4
O Xenotime-(Y)Y(PO4)
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
NaSodium
Na Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
AlAluminium
Al Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Al BerylBe3Al2(Si6O18)
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al AlbiteNa(AlSi3O8)
Al MicroclineK(AlSi3O8)
SiSilicon
Si ThortveititeSc2Si2O7
Si Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Si QuartzSiO2
Si BerylBe3Al2(Si6O18)
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si AlbiteNa(AlSi3O8)
Si MicroclineK(AlSi3O8)
PPhosphorus
P Xenotime-(Y)Y(PO4)
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
K MuscoviteKAl2(AlSi3O10)(OH)2
K MicroclineK(AlSi3O8)
CaCalcium
Ca Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Ca Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ScScandium
Sc ThortveititeSc2Si2O7
TiTitanium
Ti Rutile var. IlmenorutileFex(Nb,Ta)2x · 4Ti1-xO2
Ti Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ti RutileTiO2
FeIron
Fe Rutile var. IlmenorutileFex(Nb,Ta)2x · 4Ti1-xO2
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
YYttrium
Y Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Y Fergusonite-(Y)YNbO4
Y Xenotime-(Y)Y(PO4)
NbNiobium
Nb Rutile var. IlmenorutileFex(Nb,Ta)2x · 4Ti1-xO2
Nb Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Nb Fergusonite-(Y)YNbO4
CeCerium
Ce Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TaTantalum
Ta Rutile var. IlmenorutileFex(Nb,Ta)2x · 4Ti1-xO2
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
UUranium
U Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

Geochronology

Mineralization age: Paleoproterozoic : 1750 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Precambrian
 Proterozoic
  Paleoproterozoic
   Statherian
ⓘ Biotite1750 Ma

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Schetelig, J. (1922) Thortveitit- Ein scandiumsilikat, (Sc,Y)2Si2O7. in Brøgger, W.C, Vogt, Th., and Schetelig, J. (1922) Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I. Mat-Naturv. Klasse 1922. 11, 51-87.
Bjørlykke, H. (1934) The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311.
Marble, J.P. and Glass, J.J. (1942) Some new data on thortveitite. American Mineralogist 27: 696-698 [analysis of thortveitite from Eptevann 2].
Stensrud, S. (2009) De opptredende mineraler på granittpegmatittganger i Iveland og Evje. Unpublished paper based on 4 previous papers written together with Johan Løchen.

External Links


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