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Francisite with Chalcomentite - Baccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy (#:MINS8621)

Vivid green Franceite in sub-mm crystals in vugs of matrix with deep blue Chalcomenite in association.A very rare specie.

Formula :
Cu3Bi[O2/Cl/(SeO3)2]

System: orthorhombic Hardness:3-4 Rarity:very rare
Strunz id:IV/K.10-50 - OXIDES and HYDROXIDES
Name origin: Named in recognition of Glyn Francis (b. 1939) contribution to the understanding and preservation of the minerals of the Iron Monarch ore body. Glyn was Quality Control Officer at Iron Monarch and produced a book on the deposit in 2010.

Specimen weight:7 gr.
Crystal size:sub-mm
Overall size: 28mm x 20 mm x 14 mm



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Francisite with Chalcomentite -  Baccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy



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