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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Misenite from
Grotta dello Zolfo (Grotta di Allume), Miseno, Bacoli, Metropolitan City of Naples, Campania, Italy


Classification
Species:Misenite
Formula:K8H6(SO4)7
Comments:Occurred as a transient efflorescence in a fumarole.
Habit:Monoclin
Colour:Orange
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Extremely Rare
Confirmation
Validity:Valid - Type Locality
Associated Minerals:
Associates:Alum-(K)
Alunogen
Data
Mineral Data:Click here to view Misenite data
Locality Data:Click here to view Grotta dello Zolfo (Grotta di Allume), Miseno, Bacoli, Metropolitan City of Naples, Campania, Italy
Data Identifiers
Mindat Occurrence Record ID:7776
Long-form Identifier:1:3:7776:7
GUID (UUID V4):0
References
Scacchi A. (1849): Memorie geologiche sulla Campania. Memoria 3a. Esame delle sostanze che si formano presso i fumaroli della Regione Flegrea. Rendiconto Accad. Sci. Napoli, 8, 317-335
Zambonini F. (1907): Su alcuni minerali della Grotta dello Zolfo a Miseno. Rendiconto Accad. Sci. fis. mat. Napoli, serie 3, 46, 324-331
Zambonini, F. (1908) Su alcuni minerali della Grotta dello Zolfo a Miseno. Rivista di Mineralogia e Cristallografia Italiana, 36, 27-37
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.
 
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