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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Magnesio-fluoro-hastingsite from
Mount Vesuvius, Metropolitan City of Naples, Campania, Italy


Locality type:Stratovolcano
Classification
Species:Magnesio-fluoro-hastingsite
Formula:NaCa2(Mg4Fe3+)(Si6Al2)O22F2
Comments:MFH occurs in a xenolithe from the 1872 eruption, its identification is confirmed by SXRD and EMP-analysis
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
Data
Mineral Data:Click here to view Magnesio-fluoro-hastingsite data
Locality Data:Click here to view Mount Vesuvius, Metropolitan City of Naples, Campania, Italy
Data Identifiers
Mindat Occurrence Record ID:919104
Long-form Identifier:1:3:919104:4
GUID (UUID V4):0
References
in the collection of Christof Schäfer
 
and/or  
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