Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99991.98-2.50
1
7.18
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Fracture
-
ConchoidalWalter Schumann
Cleavage
None
None
Mohs Hardness
75.5-6.5
2
10
👆🏻
Chemical Composition
Chrysocolla, Dioptase, Malachite, Shattuckite, Smoky Quartz
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)