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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Chloritoid from
Monte Leoni, Grosseto Province, Tuscany, Italy


Locality type:Hill
Classification
Species:Chloritoid
Formula:Fe2+Al2O(SiO4)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chloritoid data
Locality Data:Click here to view Monte Leoni, Grosseto Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:940451
Long-form Identifier:1:3:940451:9
GUID (UUID V4):0
References
FRANCESCHELLI, M., LEONI, L., MEMMI, I., PUXEDDU, M. (1986) Regional distribution of Al-silicates and metamorphic zonation in the low-grade Verrucano metasediments from the Northern Apennines, Italy. Journal of Metamorphic Geology, 4 (3) 309-321 doi:10.1111/j.1525-1314.1986.tb00353.x
Giorgett, Giovanna, Goffé, Bruno, Memmi, Isabella, Nieto, Fernando (1998) Metamorphic evolution of Verrucano metasediments in northern Apennines: new petrological constraints. European Journal of Mineralogy, 10 (6) 1295-1308 doi:10.1127/ejm/10/6/1295
 
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