Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.98-4.043.34-3.44
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Imperfect, poor one {100}
{111} Indistinct, {111} Indistinct, {111} Indistinct
Mohs Hardness
4.5-58-8.5
2
10
👆🏻
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(K,Cs)Al 4Be 4(B,Be) 12O 28Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references