Tenacity
-
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
3.80-4.153.30-3.50
1
7.18
👆🏻
Fracture
Uneven
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
perfect along [010] and [100]
Perfect on {110}, poor on {101}, {001} rare
Mohs Hardness
3.5-45
2
10
👆🏻
Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references