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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Psilomelane from
Rosario claim (Rosario No. 1 claim), Rosario Mine (Rosario group of claims), Salero area, Tyndall Mining District, Santa Cruz County, Arizona, USA


Locality type:Claim
Classification
Species:'Psilomelane' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Psilomelane data
Locality Data:Click here to view Rosario claim (Rosario No. 1 claim), Rosario Mine (Rosario group of claims), Salero area, Tyndall Mining District, Santa Cruz County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:269656
Long-form Identifier:1:3:269656:0
GUID (UUID V4):0
References
Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 215.
 
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