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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Schorl from
Mica Products Company Quarries, Groton, Grafton County, New Hampshire, USA


Locality type:Quarry
Classification
Species:Schorl
Formula:NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Schorl data
Locality Data:Click here to view Mica Products Company Quarries, Groton, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:50470
Long-form Identifier:1:3:50470:0
GUID (UUID V4):0
References
 
and/or  
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