Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Eggholmane, Porsgrunn, Telemark, Norwayi
Regional Level Types
EggholmaneIsland
PorsgrunnMunicipality
TelemarkCounty
NorwayCountry

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Latitude & Longitude (WGS84):
59° 3' 37'' North , 9° 47' 34'' East
Latitude & Longitude (decimal):
59.06035,9.79282
GRN:
N40E04
Type:
Island
Köppen climate type:
Dfb : Warm-summer humid continental climate
Mindat Locality ID:
267245
Long-form identifier:
mindat:1:2:267245:1
GUID (UUID V4):
0
Other Languages:
Norwegian:
Eggholmane, Porsgrunn, Telemark, Norge


Listed as a Th deposit in the NGU Ore database, probably a nepheline syenite pegmatite located on one of the Eggholmane islands.

List of minerals for each chemical element

Other Databases

Link to Geological Survey of Norway:5728

Other Regions, Features and Areas containing this locality

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

Geological Survey of Norway (NGU). The Ore Database. Deposit Area 805 - 013. Eggholmen. (Last updated 17.jan.1997).
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