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Frikstad 09 Feldspar Quarry (Steli), Frikstad, Iveland, Agder, Norwayi
Regional Level Types
Frikstad 09 Feldspar Quarry (Steli)Quarry
FrikstadFarm
IvelandMunicipality
AgderCounty
NorwayCountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
58° 31' 55'' North , 7° 53' 59'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Byglandsfjord332 (2014)15.7km
Birkeland2,254 (2010)29.6km
Vennesla10,931 (2014)29.6km
Tveit1,397 (2010)35.6km
Justvik1,630 (2014)38.0km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Sørlandets GeologiforeningKristiansand42km
Mindat Locality ID:
189418
Long-form identifier:
mindat:1:2:189418:2
GUID (UUID V4):
c7196c07-f481-4a90-b305-b6eb1b64afbd
Other Languages:
Norwegian:
Frikstad 9 feltspatbrudd (Steli), Frikstad, Iveland, Agder, Norge


Several feldspar quarries in a large granite pegmatite dyke. The pegmatite forms a hill about 100m broad and has been worked at several places. A gadolinite crystal weighing 200kg has been found here. A pyrite mass of more than 100kg has been found here. Some of the microcline crystals contained more than 200 tons of feldspar.

Bjørlykke locality nr 96.

Bjørlykke places nr. 97 "Frikstad 10" SW of "Frikstad 9" on his map. But he writes that Frikstad 10 is situated E of Frikstad 9. Actually, there is no quarry E of the here given coordinates. But to the NNE there is actually a quarry.

(Note RW 24-3-2018):
After an extensive study of the altitude map, aerial pictures, Løchen's map , Andersen's and Barth's maps, the conclusion must be that both Barth's and Løchen's maps are wrong.
Where Barth places his nr. 96 and 97 quarries, there is actually only one quarry discernable.
Løchen (2009) describes Frikstad 10 (Bjørlykke 97) as a 25x5m large quarry. There is no such quarry in that area.
But 370 m to the west, there are four quarries situated close together.
The quarry that can be seen at the place where Bjørlykke places his 96/97 quarries, is considerable smaller than the dimensions Løchen gives up (11x4m).
It is impossible to find any trace of a quarry in a 100m circle around this one.
However, on Andersen's map, the Steli location is about 800m (not 500m) north of the Vestre Frikstad farm. And in that pegmatite are four quarries.
The only problem now is, that there is no quarry 100m NE of Frikstad 9...
The nearest quarry fitting the description of being 25x5m is situated 335m to the NE.

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


4 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:

'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Gadolinite'
Microcline
Formula: K(AlSi3O8)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Pyrite
Formula: FeS2
Quartz
Formula: SiO2

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
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Microcline9.FA.30K(AlSi3O8)
Unclassified
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
'Gadolinite'-

List of minerals for each chemical element

HHydrogen
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
H MuscoviteKAl2(AlSi3O10)(OH)2
OOxygen
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
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 BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SSulfur
S PyriteFeS2
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
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
FeIron
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fe PyriteFeS2

Other Regions, Features and Areas containing this locality


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

 
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