Tenacity
Brittle
-
Solubility
-
Soluble
Durability
-
-
Specific Gravity
3.98-4.043.06-3.25
1
7.18
👆🏻
Fracture
Conchoidal
Sub-Conchoidal, Conchoidal, Uneven
Cleavage
Imperfect, poor one {100}
Poor/indistinct on {100}
Mohs Hardness
4.5-54.5-5
2
10
👆🏻
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)