Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.24-2.293.98-4.04
1
7.18
👆🏻
Fracture
Uneven, Subconchoidal, Conchoidal
Conchoidal
Cleavage
Very poor [100]
Imperfect, poor one {100}
Mohs Hardness
5-5.54.5-5
2
10
👆🏻
Chemical Composition
NaAlSi 2O 6 · H 2OMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references