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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Litletjørna, Hellvik, Eigersund, Rogaland, Norwayi
Regional Level Types
LitletjørnaProspect (Possible Future Operation)
HellvikVillage
EigersundMunicipality
RogalandCounty
NorwayCountry

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Latitude & Longitude (WGS84):
58° 30' 3'' North , 5° 51' 50'' East
Latitude & Longitude (decimal):
58.50092,5.86401
GRN:
N40E03
Type:
Prospect (Possible Future Operation) - last checked 2017
Age:
2500 to 541 ± 1.0 Ma
Geologic Time:
Proterozoic
Reference for age:
Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 602, Litletj
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Hellvik643 (2013)2.7km
Sirevåg385 (2014)3.6km
Ogna330 (2012)4.1km
Brusand384 (2013)8.2km
Egersund9,502 (2010)9.6km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Sandnes SteinklubbSandnes41km
Mindat Locality ID:
267529
Long-form identifier:
mindat:1:2:267529:2
GUID (UUID V4):
0
Other Languages:
Norwegian:
Litletjørna, Hellvik, Eigersund, Rogaland, Norge


The locality consist of a 400 m long and 100 m wide hill.

The localities for anorthosite with labradorite showing schiller effect (labradorescence) is located both in the municipalities of Hå and Eigersund. There are currently (2015) two active quarries for labradorescent anorthosite for ornamental use, the Krokavatnet Southeast in Eigersund, and Sirevåg in Hå. The area is extensively mapped and several localities have been identified.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List


1 valid mineral.

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

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
ⓘvar. Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Unclassified
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Orthopyroxene Subgroup'-

List of minerals for each chemical element

OOxygen
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
NaSodium
Naⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
AlAluminium
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
CaCalcium
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8

Other Databases

Link to Geological Survey of Norway:14692

Other Regions, Features and Areas containing this locality

Baltic Shield (Fennoscandian Shield)Shield
Eurasian PlateTectonic Plate
EuropeContinent
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

Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 602, Litletjørna. ( Updated 28.mai.2017)
Heldal, T. & Lund, B. (1994): Naturstein i Rogaland Anortosittkompleks. Norges geologiske undersøkelse, NGU-rapport No.94.029, 73p.
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