Origin: San Giovanni mine, Cagliari, Italy
Ex. Alessandro Genazzani collection
Sample size: 5.5 x 5.5 x 3.5 cm (top/2nd/3rd row), 5.5 x 3.5 x 2.5 cm
(4th/bottom row)
Origin: Styrian Erzberg, Eisennerz, Styria, Austria
Ex. Isaias Casanova collection
Sample size: 9 x 7 x 3.5 cm
Origin: Tazouta Mine, Sefrou, Atlas Mts, Morocco
Ex. Giovanni Signorelli collection
Sample size: 11 x 9 x 8 cm
Origin: Giumentaro mine, Agrigento Sicily Italy
Ex. Giovanni Signorelli collection
Sample size: 7 x 5 x 4 cm
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