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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Andalusite from
Unnamed Pegmatite locality, Windham, Cumberland County, Maine, USA


Locality type:Occurrence
Classification
Species:Andalusite
Formula:Al2(SiO4)O
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Andalusite data
Locality Data:Click here to view Unnamed Pegmatite locality, Windham, Cumberland County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:36776
Long-form Identifier:1:3:36776:5
GUID (UUID V4):0
References
 
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