Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.98-4.045.85-6.15
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Imperfect, poor one {100}
Fair in four directions forming octahedrons
Mohs Hardness
4.5-53.5-4
2
10
👆🏻
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references