Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.98-4.042.6-3.3
1
7.18
👆🏻
Fracture
Conchoidal
Lamellar
Cleavage
Imperfect, poor one {100}
Perfect 001
Mohs Hardness
4.5-52-2.5
2
10
👆🏻
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6