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


Locality type:Stratovolcano
Classification
Species:Bararite
Formula:(NH4)2[SiF6]
Comments:Not type locality despite it being observed here first, because it was not fully described from Vesuvius.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Cryptohalite
Salammoniac
Data
Mineral Data:Click here to view Bararite data
Locality Data:Click here to view Mount Vesuvius, Metropolitan City of Naples, Campania, Italy
Data Identifiers
Mindat Occurrence Record ID:478129
Long-form Identifier:1:3:478129:5
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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