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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Copper Stain from
Blue Star Prospect, Nizina Mining District, Valdez-Cordova Census Area, Alaska, USA


Locality type:Prospect
Classification
Species:'Copper Stain' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Copper Stain data
Locality Data:Click here to view Blue Star Prospect, Nizina Mining District, Valdez-Cordova Census Area, Alaska, USA
Data Identifiers
Mindat Occurrence Record ID:577282
Long-form Identifier:1:3:577282:7
GUID (UUID V4):0
References
(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey
 
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