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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Muscovite from
Spro pegmatite, Nesodden, Akershus, Norway


Locality type:Pegmatite
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Colour:Yellowish green
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Spro pegmatite, Nesodden, Akershus, Norway
Data Identifiers
Mindat Occurrence Record ID:240396
Long-form Identifier:1:3:240396:0
GUID (UUID V4):0
Nearest other occurrences of Muscovite
8.1km (5.0 miles) ⓘÅros, Røyken, Asker, Akershus, Norway
11.6km (7.2 miles) ⓘHeggedalsveien, Asker, Akershus, Norway
11.7km (7.3 miles) ⓘVardåsen Tunnel, Asker, Akershus, Norway
13.2km (8.2 miles) ⓘGrimsrud Molybdenum prospect, Hurum, Asker, Akershus, Norway
15.8km (9.8 miles) ⓘSørumsåsen Mine, Lier, Buskerud, Norway
16.1km (10.0 miles) ⓘGrønlia, Svelvik, Drammen, Buskerud, Norway
17.9km (11.1 miles) ⓘJuve Quarry, Svelvik, Drammen, Buskerud, Norway
20.1km (12.5 miles) ⓘSølvhølen Prospect, Bærum (Baerum), Akershus, Norway
21.9km (13.6 miles) ⓘFuglemyr, Hurum, Asker, Akershus, Norway
28.1km (17.5 miles) ⓘHuken Quarry, Grorud, Oslo, Norway
References
Raade, Gunnar (1965) The minerals of the granite pegmatite at Spro, Nesodden, near Oslo, in Årbok 1964. Norges Geologiske Undersøkelse 234, 160-166
 
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