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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Wöhlerite from
Gudsfred, Eidanger, Porsgrunn, Telemark, Norway


Locality type:Railway Cutting
Classification
Species:Wöhlerite
Formula:Na2Ca4ZrNb(Si2O7)2O3F
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Wöhlerite data
Locality Data:Click here to view Gudsfred, Eidanger, Porsgrunn, Telemark, Norway
Data Identifiers
Mindat Occurrence Record ID:629652
Long-form Identifier:1:3:629652:0
GUID (UUID V4):0
References
Brøgger, Waldemar Christofer (1890) Die Mineralien der Syenitpegmatitgänge der südnorwegischen Augit- und Nephelinsyenite. Zeitschrift für Krystallographie und Mineralogie, 16 (1). 1-893
 
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