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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Axinite-(Fe) from
Keating Quarry, Cranston, Providence County, Rhode Island, USA


Locality type:Quarry
Classification
Species:Axinite-(Fe)
Formula:Ca2Fe2+Al2BSi4O15OH
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Axinite-(Fe) data
Locality Data:Click here to view Keating Quarry, Cranston, Providence County, Rhode Island, USA
Data Identifiers
Mindat Occurrence Record ID:37434
Long-form Identifier:1:3:37434:9
GUID (UUID V4):0
References
Miller, C. E. (1971) Rhode Island Minerals and their Locations. University of Rhode Island.
 
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