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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Garnet Group from
Phonolitic pyroclastic flow, Pitigliano, Grosseto Province, Tuscany, Italy


Classification
Species:'Garnet Group' (not an IMA approved species)
Formula:X3Z2(SiO4)3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Garnet Group data
Locality Data:Click here to view Phonolitic pyroclastic flow, Pitigliano, Grosseto Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:306372
Long-form Identifier:1:3:306372:9
GUID (UUID V4):0
References
Stoppa, Francesco, Liu, Yu (1995) Chemical composition and petrogenetic implications of apatites from some ultra-alkaline Italian rocks. European Journal of Mineralogy, 7 (2) 391-402 doi:10.1127/ejm/7/2/0391
 
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