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**Chemical composition:** ZnS
**Hardness:** 3.5‒4
**Density:** 3.9‒4.2 g/cm³
**Crystal system:** Cubic (Isometric)
**Luster:** Adamantine, Metallic, Resinous, Greasy
**Info:** Sphalerite (zinc blende) is the most important ore of zinc. It is usually associated with galena, pyrite, chalcopyrite, calcite, dolomite and fluorite.
## Keywords
mineral sphalerite texture color ornamental stone semi-precious gemstone