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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Chert from
Gyojayama, Kameoka City, Kyoto Prefecture, Japan


Locality type:Occurrence
Classification
Type:Chert
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chert data
Locality Data:Click here to view Gyojayama, Kameoka City, Kyoto Prefecture, Japan
Data Identifiers
Mindat Occurrence Record ID:490289
Long-form Identifier:1:3:490289:8
GUID (UUID V4):0
References
Moon Young Kim (1981) Journal of Geosciences, Osaka City University, 24, 109-162 (in the country rock of the Otani mine: granite, adamellite, aplite, hornfels, chert)
 
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