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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Pumpellyite Subgroup from
Kamikita mine, Kamikita District, Aomori Prefecture, Japan


Locality type:Mine
Classification
Species:'Pumpellyite Subgroup' (not an IMA approved species)
Formula:Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pumpellyite Subgroup data
Locality Data:Click here to view Kamikita mine, Kamikita District, Aomori Prefecture, Japan
Data Identifiers
Mindat Occurrence Record ID:1311830
Long-form Identifier:1:3:1311830:9
GUID (UUID V4):0
References
INOUE, A., & UTADA, M. (1991). Hydrothermal Alteration in the Kamikita Kuroko Mineralization Area. Mining Geology, 41(228), 203-218.
 
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