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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Grunerite quartzite

A rock subtype
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A quartzite containing grunerite.


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Unique IdentifiersHide

Mindat ID:
51942
Long-form identifier:
mindat:1:1:51942:5

Classification of Grunerite quartziteHide

Mineralogy of Grunerite quartziteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Grunerite◻{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Silica > QuartzSiO2

Internet Links for Grunerite quartziteHide

References for Grunerite quartziteHide

Reference List:
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