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Igletjødn Feldspar Quarry (Igletjern), Hæstad, Hidra, Flekkefjord, Agder, Norwayi
Regional Level Types
Igletjødn Feldspar Quarry (Igletjern)Quarry
HæstadFarm
HidraIsland
FlekkefjordMunicipality
AgderCounty
NorwayCountry

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Latitude & Longitude (WGS84):
58° 13' 31'' North , 6° 35' 19'' East
Latitude & Longitude (decimal):
58.22547,6.58888
GeoHash:
G#:u4kejztgu
GRN:
N39E03
Type:
Quarry
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Flekkefjord5,615(2016)9.0km
Vestbygd1,083(2013)14.0km
Feda396(2013)14.2km
Vanse1,953(2013)15.4km
Farsund3,151(2010)19.3km
Mindat Locality ID:
2478
Long-form identifier:
mindat:1:2:2478:8
GUID (UUID V4):
f03bc733-d2cc-4f8a-a75e-e48bddbaafe4
Other/historical names associated with this locality:
Igletjern; Igeltjern
Other Languages:
Norwegian:
Igletjødn feltspatgruve, Hæstad, Hidra, Flekkefjord, Agder, Norge


A granite pegmatite dike quarried for feldspar around the 1880s to 1931. Located N of Igletjødn pond, about 1 km NØ of the Hæstad Farm. This was the largest feldspar quarry of all on Hidra. The pegmatite was an irregular shaped dike with its greatest dimensions about 100 m. The quarry is now filled with water. The dumps are overgrown and the grass was in 2021 a habitat of a large number of small bloodsucking ticks.

Ulland (1994) writes that large quantities of both feldspar and quartz were taken out here.

Peter Waage (who became professor in chemistry) discovered herekainosite-(Y) in 1886.

There is a conflict between Andersen (1931) and Ulland (1994) regarding the location of this quarry. Andersen places the quarry S of Igletjødn, while Ullard places it north of the small pond which is correct. (However the coordinates which places it north of Igletjødn are confirmed).

Andersen (1931) also places the quarry 1 km NE of the farm. This is wrong, since the distance from the farm to Ullands location is only about 500 m. Andersens description of the quarry seems to correspond with what Ulland writes.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Commodity List

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


Mineral List


13 valid minerals. 1(TL) - type locality of 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 ListTree Diagram

Detailed Mineral List:

ⓘAeschynite-(Y)
Formula:(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6
ⓘAlbite
Formula:Na(AlSi3O8)
ⓘAlbite var. Oligoclase
Formula:(Na,Ca)[Al(Si,Al)Si2O8]
ⓘ'Allanite Group'
Formula:(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
ⓘBeryl
Formula:Be3Al2(Si6O18)
ⓘ'Biotite'
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Description: Large amount of biotite was found here. At one occasion about 2 tons were taken out (Adamson 1942)
ⓘ'Davidite'
Description: Identified from an old specimen in the mineral collection at Natural History Museum, Oslo
ⓘEuxenite-(Y)
Formula:(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Description: Also formerly described as polycrase-(Y), now descredited.
ⓘ'Feldspar Group'
ⓘGadolinite-(Y)
Formula:Y2Fe2+Be2Si2O10
ⓘIlmenite
Formula:Fe2+TiO3
ⓘKainosite-(Y) (TL)
Formula:Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Type Locality:
ⓘMagnetite
Formula:Fe2+Fe3+2O4
ⓘMolybdenite
Formula:MoS2
ⓘ'Monazite Group'
Formula:REE(PO4)
ⓘMuscovite
Formula:KAl2(AlSi3O10)(OH)2
ⓘQuartz
Formula:SiO2
ⓘXenotime-(Y)
Formula:Y(PO4)
ⓘZircon
Formula:Zr(SiO4)
ⓘZircon var. Malacon
Formula:Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘMolybdenite2.EA.30MoS2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘQuartz4.DA.05SiO2
ⓘAeschynite-(Y)4.DF.05(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6
ⓘEuxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Group 8 - Phosphates, Arsenates and Vanadates
ⓘXenotime-(Y)8.AD.35Y(PO4)
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘvar. Malacon9.AD.30Zr(SiO4)
ⓘGadolinite-(Y)9.AJ.20Y2Fe2+Be2Si2O10
ⓘKainosite-(Y) (TL)9.CF.10Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
ⓘBeryl9.CJ.05Be3Al2(Si6O18)
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘvar. Oligoclase9.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
ⓘ'Davidite'-
ⓘ'Feldspar Group'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
HⓘAeschynite-(Y)(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6
HⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
HⓘKainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
HⓘMuscoviteKAl2(AlSi3O10)(OH)2
HⓘAllanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
BeBeryllium
BeⓘBerylBe3Al2(Si6O18)
BeⓘGadolinite-(Y)Y2Fe2+Be2Si2O10
CCarbon
CⓘKainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
OOxygen
OⓘAeschynite-(Y)(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6
OⓘAlbiteNa(AlSi3O8)
OⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
OⓘBerylBe3Al2(Si6O18)
OⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
OⓘGadolinite-(Y)Y2Fe2+Be2Si2O10
OⓘIlmeniteFe2+TiO3
OⓘKainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
OⓘMagnetiteFe2+Fe23+O4
OⓘMonazite GroupREE(PO4)
OⓘMuscoviteKAl2(AlSi3O10)(OH)2
OⓘAlbite var.Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
OⓘQuartzSiO2
OⓘXenotime-(Y)Y(PO4)
OⓘZirconZr(SiO4)
OⓘZircon var.MalaconZr(SiO4)
OⓘAllanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
FFluorine
FⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
NaⓘAlbiteNa(AlSi3O8)
NaⓘAlbite var.Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
MgMagnesium
MgⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
AlⓘAlbiteNa(AlSi3O8)
AlⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlⓘBerylBe3Al2(Si6O18)
AlⓘMuscoviteKAl2(AlSi3O10)(OH)2
AlⓘAlbite var.Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
SiSilicon
SiⓘAlbiteNa(AlSi3O8)
SiⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
SiⓘBerylBe3Al2(Si6O18)
SiⓘGadolinite-(Y)Y2Fe2+Be2Si2O10
SiⓘKainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
SiⓘMuscoviteKAl2(AlSi3O10)(OH)2
SiⓘAlbite var.Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
SiⓘQuartzSiO2
SiⓘZirconZr(SiO4)
SiⓘZircon var.MalaconZr(SiO4)
SiⓘAllanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
PPhosphorus
PⓘMonazite GroupREE(PO4)
PⓘXenotime-(Y)Y(PO4)
SSulfur
SⓘMolybdeniteMoS2
KPotassium
KⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
KⓘMuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
CaⓘAeschynite-(Y)(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6
CaⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
CaⓘKainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
CaⓘAlbite var.Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
TiTitanium
TiⓘAeschynite-(Y)(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6
TiⓘBiotiteK(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ⓘIlmeniteFe2+TiO3
FeIron
FeⓘBiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeⓘGadolinite-(Y)Y2Fe2+Be2Si2O10
FeⓘIlmeniteFe2+TiO3
FeⓘMagnetiteFe2+Fe23+O4
YYttrium
YⓘAeschynite-(Y)(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6
YⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
YⓘGadolinite-(Y)Y2Fe2+Be2Si2O10
YⓘKainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
YⓘXenotime-(Y)Y(PO4)
ZrZirconium
ZrⓘZirconZr(SiO4)
ZrⓘZircon var.MalaconZr(SiO4)
NbNiobium
NbⓘAeschynite-(Y)(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6
NbⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
MoMolybdenum
MoⓘMolybdeniteMoS2
CeCerium
CeⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
CeⓘKainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
TaTantalum
TaⓘEuxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ThThorium
ThⓘAeschynite-(Y)(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6
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

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
Eurasian Plate
Norway

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, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

Nordenskiöld, A.E. (1886): Mineralogiska bidrag. Kainosit, et nytt mineral från Hitterö i Norge. Geologiska Föreningen i Stockholm Förhandlingar 8, 143-146
Andersen, Olaf (1931) Feltspat II. Forekomster i fylkene Buskerud og Telemark, i flere herreder i Aust-Agder og i Hidra i Vest-Agder.Norges Geologiske Undersøkelse 128b p.1-109.p.108
Neumann, Henrich, Nilssen, Borghild (1962) Nytt funn av daviditt.Mineralogisk-Geologisk Museum - Universitetet i Oslo- Interne notater, Geologisk Museums venner. 8
Ulland, L. A. (1994): Gruvedrift. in Hanssen, J., Hansson, H. & Larsen, O. (eds): (1994) Ytterst mot havet. Kystmuseet Fedrenes Minne 50 år. Hidra 1994, 63-72
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