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

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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

ⓘ Feldspar

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!

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Alphabetical List Tree Diagram

ⓘ Amphibolite

ⓘ 'Pegmatite'

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Schetelig, Jakob (1922) Thortveitit, Gadolinit, Kainosit und Orthit, in Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde (Y-reihe und Ce-reihe). Videnskapsselskapet i Kristiania Skrifter - I Matematisk-naturvidenskabelig klasse, 1922 (1). 49-138

ⓘ Albite var. Oligoclase

Formula: (Na,Ca)[Al(Si,Al)Si₂O₈]

References:

ⓘ 'Allanite Group'

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

References:

ⓘ 'Almandine-Spessartine Series'

References:

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 Unpublished paper based on 4 previous papers written together with Johan Løchen.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)

References:

ⓘ 'Biotite'

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

References:

Bjørlykke, Knut (1935) The mineral paragenesis and classification of the granite pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 14 (3-4). 211-311

ⓘ Euxenite-(Y)

Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆

References:

ⓘ Fergusonite-(Y)

Formula: YNbO₄

References:

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 Unpublished paper based on 4 previous papers written together with Johan Løchen.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)

References:

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 Group'

Formula: REE(PO₄)

References:

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

References:

ⓘ Quartz

Formula: SiO₂

References:

ⓘ Rutile

Formula: TiO₂

References:

Schetelig, Jakob (1913) Mineralogische studien 1 [Mineralogical Studies 1]. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 2 (3) 1-38 p.11

ⓘ Rutile var. Ilmenorutile

Formula: (Ti,Nb)O₂

References:

Schetelig, Jakob (1913) Mineralogische studien 1 [Mineralogical Studies 1]. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 2 (3) 1-38 p.11

Černý, Petr, Chapman, R. (2001) Exsolution and breakdown of scandian and tungstenian Nb-Ta-Ti-Fe-Mn phases in niobian rutile. The Canadian Mineralogist, 39 (1) 93-101 doi:10.2113/gscanmin.39.1.93

ⓘ Thortveitite

Formula: Sc₂Si₂O₇

Habit: Prismatic crystals

Colour: greyish-green

References:

Marble, John Putnam, Glass, Jewell J. (1942) Some new data on thortveitite. American Mineralogist, 27 (10) 696-698

ⓘ Xenotime-(Y) ?

Formula: Y(PO₄)

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Rutile var. Ilmenorutile	4.DB.05	(Ti,Nb)O₂
ⓘ		4.DB.05	TiO₂
ⓘ	Euxenite-(Y)	4.DG.05	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Fergusonite-(Y)	7.GA.05	YNbO₄
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Xenotime-(Y) ?	8.AD.35	Y(PO₄)
Group 9 - Silicates
ⓘ	Thortveitite	9.BC.05	Sc₂Si₂O₇
ⓘ	Beryl	9.CJ.05	Be₃Al₂(Si₆O₁₈)
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	var. Oligoclase	9.FA.35	(Na,Ca)[Al(Si,Al)Si₂O₈]
Unclassified
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Monazite Group'	-	REE(PO₄)
ⓘ	'Almandine-Spessartine Series'	-
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'Allanite Group'	-	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
Be	Beryllium
Be	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
O	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
O	ⓘ Fergusonite-(Y)	YNbO₄
O	ⓘ Rutile var. Ilmenorutile	(Ti,Nb)O₂
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Monazite Group	REE(PO₄)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Albite var. Oligoclase	(Na,Ca)[Al(Si,Al)Si₂O₈]
O	ⓘ Quartz	SiO₂
O	ⓘ Rutile	TiO₂
O	ⓘ Thortveitite	Sc₂Si₂O₇
O	ⓘ Xenotime-(Y)	Y(PO₄)
O	ⓘ Almandine-Spessartine Series
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Albite var. Oligoclase	(Na,Ca)[Al(Si,Al)Si₂O₈]
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Albite var. Oligoclase	(Na,Ca)[Al(Si,Al)Si₂O₈]
Al	ⓘ Almandine-Spessartine Series
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Albite var. Oligoclase	(Na,Ca)[Al(Si,Al)Si₂O₈]
Si	ⓘ Quartz	SiO₂
Si	ⓘ Thortveitite	Sc₂Si₂O₇
Si	ⓘ Almandine-Spessartine Series
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
P	Phosphorus
P	ⓘ Monazite Group	REE(PO₄)
P	ⓘ Xenotime-(Y)	Y(PO₄)
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Ca	ⓘ Albite var. Oligoclase	(Na,Ca)[Al(Si,Al)Si₂O₈]
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Sc	Scandium
Sc	ⓘ Thortveitite	Sc₂Si₂O₇
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Ti	ⓘ Rutile var. Ilmenorutile	(Ti,Nb)O₂
Ti	ⓘ Rutile	TiO₂
Mn	Manganese
Mn	ⓘ Almandine-Spessartine Series
Fe	Iron
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Almandine-Spessartine Series
Y	Yttrium
Y	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Y	ⓘ Fergusonite-(Y)	YNbO₄
Y	ⓘ Xenotime-(Y)	Y(PO₄)
Nb	Niobium
Nb	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Nb	ⓘ Fergusonite-(Y)	YNbO₄
Nb	ⓘ Rutile var. Ilmenorutile	(Ti,Nb)O₂
Ce	Cerium
Ce	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Ta	Tantalum
Ta	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Th	Thorium
Th	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
U	Uranium
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 Time

Rocks, Minerals and Events

1750 Ma

Other Regions, Features and Areas containing this locality

Baltic Shield (Fennoscandian Shield)Shield

Eurasian PlateTectonic Plate

Baltic Shield
- Sveconorwegian BeltShield

EuropeContinent

Norway

Agder
- EptevatnetLake
⭔Aust-AgderCounty

ScandinaviaRegion

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

www.minsocam.org (n.d.) http://www.minsocam.org/ammin/AM27/AM27_696.pdf

Marble, John Putnam, Glass, Jewell J. (1942) Some new data on thortveitite. American Mineralogist, 27 (10) 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.

njg.geologi.no (n.d.) http://njg.geologi.no/images/NJG_articles/NGT_14_3_4_211-311.pdf

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Eptevatnet 02 Thortveitite Quarry, Iveland, Agder, NorwayiRegional Level TypesEptevatnet 02 Thortveitite QuarryQuarry IvelandMunicipality AgderCounty NorwayCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Commodity List

Mineral List

Rock Types Recorded

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Geochronology

Other Regions, Features and Areas containing this locality

References

Eptevatnet 02 Thortveitite Quarry, Iveland, Agder, Norway i
Regional Level Types
Eptevatnet 02 Thortveitite Quarry Quarry
Iveland Municipality
Agder County
Norway Country