Stannite

Chemical compound

Stannite is a mineral, a sulfide of copper, iron, and tin, in the category of thiostannates. Wikipedia

IMA symbol: Stn

Cleavage: Indistinct on, and

Crystal class: Scalenohedral (42m); H-M symbol: (4 2m)

Crystal habit: Rarely as pseudo-octahedral crystals also massive, granular, and disseminated

Crystal system: Tetragonal

Formula (repeating unit): Cu₂FeSnS₄

Luster: Metallic

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