Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.00-4.652.24-2.29
1
7.18
👆🏻
Fracture
Uneven, Sub-Conchoidal
Uneven, Subconchoidal, Conchoidal
Cleavage
Perfect on [1011]
Very poor [100]
Mohs Hardness
5-5.55-5.5
2
10
👆🏻
Chemical Composition
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaAlSi 2O 6 · H 2OMichael OâDonoghue , Gems, Sixth edition (2006) More from other references