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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Clay minerals from
Koryu mine (Kohryu mine), Chitose City, Ishikari Subprefecture, Hokkaidō Prefecture, Japan


Locality type:Mine
Classification
Species:'Clay minerals' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Clay minerals data
Locality Data:Click here to view Koryu mine (Kohryu mine), Chitose City, Ishikari Subprefecture, Hokkaidō Prefecture, Japan
Data Identifiers
Mindat Occurrence Record ID:1468418
Long-form Identifier:1:3:1468418:2
GUID (UUID V4):0
References
Yuningsih, Euis T., Matsueda, Hiroharu (2018) Study on the Cu-As-Sb-Ag-Bi-Pb-Te Sulfosalt Minerals from the Hydrothermal System of Southwestern Hokkaido, Japan. Resource Geology, 68 (3) 209-226 doi:10.1111/rge.12157
 
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