Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.89-4.185.85-6.15
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Conchoidal
Cleavage
{0001}, {11 2 0} imperfect
Fair in four directions forming octahedrons
Mohs Hardness
5.53.5-4
2
10
👆🏻
Chemical Composition
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references