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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Hörnesite from
Fiano tuff quarries, Nocera Inferiore, Salerno, Campania, Italy


Locality type:Quarry
Classification
Species:Hörnesite
Formula:Mg3(AsO4)2 · 8H2O
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Fluoborite
Fluorite
Hydromagnesite
Data
Mineral Data:Click here to view Hörnesite data
Locality Data:Click here to view Fiano tuff quarries, Nocera Inferiore, Salerno, Campania, Italy
Data Identifiers
Mindat Occurrence Record ID:367487
Long-form Identifier:1:3:367487:1
GUID (UUID V4):0
References
Carati, M. (1988): I minerali degli inclusi metamorfosati nel Tufo Grigio Campano. Notiziario del Gruppo Mineralogico Geologico Napoletano, 18, 5-12.
 
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