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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Graphite-3R from
Kinzandani, Hashidate, Ōmi, Itoigawa City, Niigata Prefecture, Japan


Locality type:Occurrence
Classification
Species:'Graphite-3R' (not an IMA approved species)
Formula:C
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Graphite-3R data
Locality Data:Click here to view Kinzandani, Hashidate, Ōmi, Itoigawa City, Niigata Prefecture, Japan
Data Identifiers
Mindat Occurrence Record ID:1828373
Long-form Identifier:1:3:1828373:2
GUID (UUID V4):0
References
OGAWARA, Takahiko, AKAI, Junji (2014) Graphite–3R in a fault fracture zone associated with black jadeitite from Kanayamadani, Itoigawa, central Japan. Journal of Mineralogical and Petrological Sciences, 109 (3) 125-137 doi:10.2465/jmps.131125a
 
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