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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Perthite from
Mount Kuresaka, Iwagi Island, Ochi District, Ehime Prefecture, Japan


Locality type:Mountain
Classification
Species:Feldspar Group var: Perthite
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Perthite data
Locality Data:Click here to view Mount Kuresaka, Iwagi Island, Ochi District, Ehime Prefecture, Japan
Data Identifiers
Mindat Occurrence Record ID:1649698
Long-form Identifier:1:3:1649698:9
GUID (UUID V4):0
References
Imaoka, Teruyoshi; Akita, Sachiho; Ishikawa, Tsuyoshi; Tani, Kenichiro; Kimura, Jun-Ichi; Chang, Qing; Nagashima, Mariko (2024) Petrogenesis of an Episyenite from Iwagi Islet, Southwest Japan: Unique Li–Na Metasomatism during the Turonian. Minerals, 14 (9). 929 doi:10.3390/min14090929
 
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