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Stannite: Cu2FeSnS4 Volfsonite: Cu+10Cu++Fe++Fe+++2Sn++++3S16
Comments: Bluish-black octahedron of stannite (also known as volfsonite).
Location: Yaogangxian Wolfram mine, Yizhang County, Hunan Province, China.
Scale: See Image.
© Rruff Database
Comments: Stannite crystal cluster at the base of a quartz crystal. Volfsonite is now consideres stannite.
Location: Yaogangxian mine, Hunan, China.
Scale: Crystal size 3 cm.
© John Attard
Stannite: Cu2FeSnS4 Zinkenite: Pb9Sb22S42
Comments: Acicular crystals of zinkenite perched on a twinned, crystal of stannite.
Location: Mina San José, Oruro, Bolivia.
Scale: 4 x 2.3 x 1.7 cm.
© Fabre Minerals