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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Kryptomelan

A synonym of Cryptomelane
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Formula:
K(Mn4+7Mn3+)O16
German name for:
German name.


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Unique IdentifiersHide

Mindat ID:
29446 (as Kryptomelan)
1164 (as Cryptomelane)
Long-form identifier:
mindat:1:1:29446:5 (as Kryptomelan)
mindat:1:1:1164:4 (as Cryptomelane)

Internet Links for KryptomelanHide

References for KryptomelanHide

Reference List:
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