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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Pennin

A synonym of 'Pennine'
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Formula:
Mg5Al(AlSi3O10)(OH)8
German synonym of:
This page provides mineralogical data about Pennin.


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Unique IdentifiersHide

Mindat ID:
39204 (as Pennin)
9262 (as Pennine)
1070 (as Clinochlore)
Long-form identifier:
mindat:1:1:39204:0 (as Pennin)
mindat:1:1:9262:9 (as Pennine)
mindat:1:1:1070:8 (as Clinochlore)

Internet Links for PenninHide

References for PenninHide

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