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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Chrysocolla from
Oncino lava flow (Uncino lava flow), Torre Annunziata, Metropolitan City of Naples, Campania, Italy


Locality type:Lava Flow
Classification
Species:Chrysocolla
Formula:Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chrysocolla data
Locality Data:Click here to view Oncino lava flow (Uncino lava flow), Torre Annunziata, Metropolitan City of Naples, Campania, Italy
Data Identifiers
Mindat Occurrence Record ID:1374218
Long-form Identifier:1:3:1374218:8
GUID (UUID V4):0
Nearest other occurrences of Chrysocolla
1.2km (0.7 miles) ⓘVilla Inglese quarries, Torre del Greco, Metropolitan City of Naples, Campania, Italy
2.1km (1.3 miles) ⓘCamaldoli della Torre, Torre del Greco, Metropolitan City of Naples, Campania, Italy
6.2km (3.9 miles) ⓘVesuvius fumaroles on eastern crater rim, Ottaviano, Metropolitan City of Naples, Campania, Italy
7.9km (4.9 miles) ⓘLe Novelle Quarry, Ercolano, Metropolitan City of Naples, Campania, Italy
References
Balassone, Giuseppina, Petti, Carmela, Mondillo, Nicola, Panikorovskii, Taras L., de Gennaro, Roberto, Cappelletti, Piergiulio, Altomare, Angela, Corriero, Nicola, Cangiano, Maria, D’Orazio, Loredana (2019) Copper Minerals at Vesuvius Volcano (Southern Italy): A Mineralogical Review. Minerals, 9 (12) 730 doi:10.3390/min9120730
 
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