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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Vermiculite from
Moland Industrial Site, Akland, Risør, Agder, Norway


Locality type:Industrial Site
Classification
Species:Vermiculite
Formula:Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Vermiculite data
Locality Data:Click here to view Moland Industrial Site, Akland, Risør, Agder, Norway
Data Identifiers
Mindat Occurrence Record ID:169448
Long-form Identifier:1:3:169448:2
GUID (UUID V4):0
References
Garmo, Torgeir T. (2003) Mineralnotat 2002. STEIN. Nordisk magasin for populær geologi, 30 (1) 14-16
 
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