Tenacity
Brittle
Brittle
Solubility
-
insoluble in water
Durability
-
-
Specific Gravity
3.98-4.045.00-5.20
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal, ConchoidalWalter Schumann
Cleavage
Imperfect, poor one {100}
Indistinct on {001}; partings on {011} and {111}
Mohs Hardness
4.5-56-6.5
2
10
👆🏻
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references