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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Plagioclase from
Jokisivu (Kujankallio), Huittinen, Satakunta, Finland


Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Jokisivu (Kujankallio), Huittinen, Satakunta, Finland
Data Identifiers
Mindat Occurrence Record ID:35272
Long-form Identifier:1:3:35272:7
GUID (UUID V4):0
Nearest other occurrences of Plagioclase
6.1km (3.8 miles) ⓘHvittis meteorite, Huittinen, Satakunta, Finland
60.6km (37.7 miles) ⓘVatanen, Pirkkala, Pirkanmaa, Finland
66.5km (41.3 miles) ⓘTilasinvuori, Tammela, Kanta-Häme, Finland
68.6km (42.6 miles) ⓘHirvikallio, Tammela, Kanta-Häme, Finland
71.9km (44.7 miles) ⓘHaveri mine, Viljakkala, Ylöjärvi, Pirkanmaa, Finland
78.0km (48.5 miles) ⓘKaapelinkulma, Valkeakoski, Pirkanmaa, Finland
80.7km (50.1 miles) ⓘVenesjärvi, Kankaanpää, Satakunta, Finland
82.0km (50.9 miles) ⓘNaantali carbonatite dikes, Naantali, Southwest Finland, Finland
86.4km (53.7 miles) ⓘHilloinen quarry, Taivassalo, Southwest Finland, Finland
90.7km (56.3 miles) ⓘOtamo dolomite quarry, Siikainen, Satakunta, Finland
References
www.gsf.fi (2001) http://www.gsf.fi/explor/gold/jokisivu.htm
 
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