Mineral: Chalcantite, Pickeringite, Halotrichite
Locality: Fenice Capanne Mine, Massa Marittima, Grosseto Province, Tuscany, Italy
Dimensions: 16,5 x 10 cm

Description: A specimen with three different sulphates: blue Chalcantite covered by white acicular Pickeringite and yellowish fibrous Halotrichite.

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