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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Aenigmatite from
Ischia Island, Metropolitan City of Naples, Campania, Italy


Locality type:Island
Classification
Species:Aenigmatite
Formula:Na4[Fe102+Ti2]O4[Si12O36]
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Aenigmatite data
Locality Data:Click here to view Ischia Island, Metropolitan City of Naples, Campania, Italy
Data Identifiers
Mindat Occurrence Record ID:971511
Long-form Identifier:1:3:971511:0
GUID (UUID V4):0
References
Melluso, L., Morra, V., Guarino, V., de’ Gennaro, R., Franciosi, L., Grifa, C. (2014) The crystallization of shoshonitic to peralkaline trachyphonolitic magmas in a H2O–Cl–F-rich environment at Ischia (Italy), with implications for the feeder system of the Campania Plain volcanoes. Lithos, 210. 242-259 doi:10.1016/j.lithos.2014.10.002
 
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