Shattuckite

Shattuckite – Cu₅(SiO₃)₄(OH)₂

Elements: Copper, Silicon, Oxygen, Hydrogen

Class: Silicates – Inosilicates

Crystal System: Orthorhombic

Hardness: 3.5

Fluorite

Talc (1)Diamond (10)

Softer than glass. A steel knife scratches it.

Origin: Tantara Mine, Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba) – Congo (drc)

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