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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Dolomite from
Pegmatite veins, Rytterholmane, Kragerø Archipelago, Kragerø, Telemark, Norway


Locality type:Pegmatite
Classification
Species:Dolomite
Formula:CaMg(CO3)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dolomite data
Locality Data:Click here to view Pegmatite veins, Rytterholmane, Kragerø Archipelago, Kragerø, Telemark, Norway
Data Identifiers
Mindat Occurrence Record ID:239221
Long-form Identifier:1:3:239221:9
GUID (UUID V4):0
Nearest other occurrences of Dolomite
2.0km (1.3 miles) ⓘSveivedokk dolomite quarry, Østre Gumøy, Gumøy, Kragerø Archipelago, Kragerø, Telemark, Norway
5.2km (3.2 miles) ⓘValberg Quarry, Valberg, Kragerø, Telemark, Norway
10.2km (6.4 miles) ⓘHavredal I quarry, Midtre Havredal, Havredal, Bamble, Telemark, Norway
10.3km (6.4 miles) ⓘØdegården apatite mines, Bamble, Telemark, Norway
12.2km (7.6 miles) ⓘKnipen, Sannidal, Kragerø, Telemark, Norway
26.7km (16.6 miles) ⓘRavneberget Quarry, Søndeled, Risør, Agder, Norway
47.1km (29.3 miles) ⓘSøve Mines, Nome, Telemark, Norway
47.3km (29.4 miles) ⓘTufte Adit, Søve Mines, Nome, Telemark, Norway
48.8km (30.3 miles) ⓘSelåsvann, Vegårshei, Agder, Norway
58.7km (36.5 miles) ⓘGloserheia, Froland, Agder, Norway
References
Reitan, Paul H. (1959) Pegmatite veins and the surrounding rocks III. Structural control of small pegmatites in amphibolite, Rytterholmen, Kragerøfjord, Norway . Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 39 (2-3). 175-195
 
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