Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Bjortjønn (Bjortjenn), Hynnekleiv, Froland, Agder, Norwayi
Regional Level Types
Bjortjønn (Bjortjenn)Quarry
HynnekleivRailway Station
FrolandMunicipality
AgderCounty
NorwayCountry

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Latitude & Longitude (WGS84):
58° 35' 53'' North , 8° 26' 51'' East
Latitude & Longitude (decimal):
58.59823,8.44775
GeoHash:
G#: u4qj25rrq
GRN:
N40E04
Type:
Quarry
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Åmli572 (2016)18.7km
Rykene647 (2013)23.7km
Arendal30,916 (2017)24.2km
Fevik4,989 (2014)27.8km
Tvedestrand1,975 (2016)28.1km
Mindat Locality ID:
49707
Long-form identifier:
mindat:1:2:49707:8
GUID (UUID V4):
0
Other/historical names associated with this locality:
Bjortjørn
Other Languages:
Norwegian:
Bjortjønn (Bjortjenn), Hynnekleiv, Froland, Agder, Norge


A locality described by Müller et al. (2006).

He described the quarry as a 7 m wide, 4 m high and 10 m long underground workings, ending in a 20 m high, water-filles stope.
This pegmatite is interesting, while during the second worldwar the Germans mined here for uranium minerals and muscovite.
Müller spells the name as "Bjortjørn", but the name on modern maps is spelled as Bjortjønn.

Originally this locality was registered as being located in the Mykland parish, but it is actually closer to Hynnekleiv, which is located in between Mykland and Bjortjønn.


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

Select Mineral List Type

Standard Detailed Gallery Strunz 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:

ⓘ 'Alkali Feldspar'
ⓘ Allanite-(Ce)
Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
ⓘ 'Almandine-Spessartine Series'
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Samarskite-(Y)
Formula: YFe3+Nb2O8
ⓘ Thorite
Formula: Th(SiO4)
Description: Found as inclusions in garnet
ⓘ Uraninite
Formula: UO2
Description: Found as inclusions in garnet
ⓘ Xenotime-(Y)
Formula: Y(PO4)
Description: Found as inclusions in garnet
ⓘ Yttrotantalite-(Y)
Formula: (Y,U,Fe2+)(Ta,Nb)(O,OH)4
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘSamarskite-(Y)4.DB.25YFe3+Nb2O8
ⓘYttrotantalite-(Y)4.DG.10(Y,U,Fe2+)(Ta,Nb)(O,OH)4
ⓘUraninite4.DL.05UO2
Group 8 - Phosphates, Arsenates and Vanadates
ⓘXenotime-(Y)8.AD.35Y(PO4)
Group 9 - Silicates
ⓘThorite9.AD.30Th(SiO4)
ⓘZircon9.AD.30Zr(SiO4)
ⓘAllanite-(Ce)9.BG.05b(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Alkali Feldspar'-
ⓘ'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

List of minerals for each chemical element

HHydrogen
Hⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
OOxygen
Oⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Monazite GroupREE(PO4)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ Samarskite-(Y)YFe3+Nb2O8
Oⓘ ThoriteTh(SiO4)
Oⓘ UraniniteUO2
Oⓘ Xenotime-(Y)Y(PO4)
Oⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
Oⓘ ZirconZr(SiO4)
Oⓘ Almandine-Spessartine Series
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Almandine-Spessartine Series
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ ThoriteTh(SiO4)
Siⓘ ZirconZr(SiO4)
Siⓘ Almandine-Spessartine Series
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
PPhosphorus
Pⓘ Monazite GroupREE(PO4)
Pⓘ Xenotime-(Y)Y(PO4)
SSulfur
Sⓘ PyriteFeS2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MnManganese
Mnⓘ Almandine-Spessartine Series
FeIron
Feⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ PyriteFeS2
Feⓘ Samarskite-(Y)YFe3+Nb2O8
Feⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
Feⓘ Almandine-Spessartine Series
YYttrium
Yⓘ Samarskite-(Y)YFe3+Nb2O8
Yⓘ Xenotime-(Y)Y(PO4)
Yⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
ZrZirconium
Zrⓘ ZirconZr(SiO4)
NbNiobium
Nbⓘ Samarskite-(Y)YFe3+Nb2O8
Nbⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
CeCerium
Ceⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
TaTantalum
Taⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
ThThorium
Thⓘ ThoriteTh(SiO4)
UUranium
Uⓘ UraniniteUO2
Uⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4

Other Regions, Features and Areas containing this locality

Baltic Shield (Fennoscandian Shield)Shield
Eurasian PlateTectonic Plate
EuropeContinent
Norway
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

Rosenqvist, I. Th. (1949): Samarskit-yttrotantalit ved Bjortjenn i Mykland herred. Norsk Geologisk Tidsskrift. 28, 40-43
Butler, J. R. (1958) Rare earths in some niobate-tantalates. Mineralogical Magazine and Journal of the Mineralogical Society, 31 (240). 763-780 doi:10.1180/minmag.1958.031.240.05p.766 - with a partial analysis of the content of REE in samarskite-(Y) from Bjortjenn
Müller, A., Ihlen, P.M., Kronz, A. (2006): Potential resources of quartz and feldspar raw material in Sørland IV: Relationships between quartz, feldspar and mica chemistry and pegmatite type. NGU report 2005.075, 94 pp
Müller, Axel, Kearsley, A., Spratt, J., Seltmann, R. (2012) Petrogenetic implications of magmatic garnet in granitic pegmatites from Southern Norway. The Canadian Mineralogist, 50 (4) 1095-1115 doi:10.3749/canmin.50.4.1095
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