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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Melanterite from
Freva Mine (Cuzzago Mine; Buèr Mine; Cuzzago & Nibbio Mine), Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy


Locality type:Mine
Classification
Species:Melanterite
Formula:Fe2+(H2O)6(SO4) · H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Melanterite data
Locality Data:Click here to view Freva Mine (Cuzzago Mine; Buèr Mine; Cuzzago & Nibbio Mine), Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy
Data Identifiers
Mindat Occurrence Record ID:933166
Long-form Identifier:1:3:933166:2
GUID (UUID V4):0
Nearest other occurrences of Melanterite
13.3km (8.3 miles) ⓘAlvani Mine, Campello Monti, Valstrona, Verbano-Cusio-Ossola Province, Piedmont, Italy
26.1km (16.2 miles) ⓘAlfenza Mine, Crodo, Verbano-Cusio-Ossola Province, Piedmont, Italy
47.9km (29.8 miles) ⓘLe Forche, Quittengo, Campiglia Cervo, Biella Province, Piedmont, Italy
66.1km (41.1 miles) ⓘForêt du Rochet, Saint-Luc, Anniviers, Sierre, Valais, Switzerland
66.8km (41.5 miles) ⓘGaeta Mine, San Siro, Como Province, Lombardy, Italy
71.0km (44.1 miles) ⓘBrosso Mine, Calea, Lessolo, Metropolitan City of Turin, Piedmont, Italy
91.0km (56.6 miles) ⓘCogne Mines, Cogne, Aosta Valley, Italy
92.1km (57.2 miles) ⓘKleine Windgälle (Chli Windgälle; Läged Windgälle), Golzern, Maderanertal, Silenen, Uri, Switzerland
References
Scaini G. (1971): L'alunogeno della miniera del Nibbio a Mergozzo (Ossola). Natura, 42, (2), 230-231.
 
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