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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Pyknochlorite

A synonym of 'Pycnochlorite'
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Formula:
Mg5Al(AlSi3O10)(OH)8
Synonym:
A synonym of Pycnochlorite
An iron-rich variety of clinochlore.


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Unique IdentifiersHide

Mindat ID:
40404 (as Pyknochlorite)
40405 (as Pycnochlorite)
1070 (as Clinochlore)
Long-form identifier:
mindat:1:1:40404:4 (as Pyknochlorite)
mindat:1:1:40405:3 (as Pycnochlorite)
mindat:1:1:1070:8 (as Clinochlore)

Internet Links for PyknochloriteHide

References for PyknochloriteHide

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