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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Cryptohalite from
Mount Vesuvius, Metropolitan City of Naples, Campania, Italy


Locality type:Stratovolcano
Classification
Species:Cryptohalite
Formula:(NH4)2[SiF6]
Confirmation
Validity:Valid - Type Locality
Associated Minerals:
Associates:Bararite
Salammoniac
Data
Mineral Data:Click here to view Cryptohalite data
Locality Data:Click here to view Mount Vesuvius, Metropolitan City of Naples, Campania, Italy
Data Identifiers
Mindat Occurrence Record ID:478128
Long-form Identifier:1:3:478128:8
GUID (UUID V4):0
References
Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.
Preite, Domenico (1994) Die Mineralien des Vesuvs [The minerals of Vesuvius]. Lapis, 19 (5). 13-23; 58
 
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