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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Zeophyllite from
Pollena Trocchia, Metropolitan City of Naples, Campania, Italy


Locality type:Commune
Classification
Species:Zeophyllite
Formula:Ca13Si10O28(OH)2F8 · 6H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Zeophyllite data
Locality Data:Click here to view Pollena Trocchia, Metropolitan City of Naples, Campania, Italy
Data Identifiers
Mindat Occurrence Record ID:478236
Long-form Identifier:1:3:478236:0
GUID (UUID V4):0
References
Passaglia, Elio, Porcelli, Cesare (1983) Zeophyllite from Monte Somma, Vesuvius, Italy. Mineralogical Magazine, 47 (344) 397-400 doi:10.1180/minmag.1983.047.344.19
 
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