Tenacity
Brittle
-
Solubility
Soluble
insoluble in common solvents
Durability
-
-
Specific Gravity
3.25-3.352.65
1
7.18
👆🏻
Fracture
Conchoidal, ConchoidalWalter Schumann
Conchoidal, ConchoidalWalter Schumann
Cleavage
Perfect in three directions
Indiscernible
Mohs Hardness
57
2
10
👆🏻
Chemical Composition
CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO2