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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Alundum

A variety of Corundum
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An artificial Corundum used as an abrasive.


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Unique IdentifiersHide

Mindat ID:
8372 (as Alundum)
1136 (as Corundum)
Long-form identifier:
mindat:1:1:8372:6 (as Alundum)
mindat:1:1:1136:1 (as Corundum)

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for AlundumHide

References for AlundumHide

Reference List:
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