Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.89-4.182.60-2.65
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, Conchoidal
Cleavage
{0001}, {11 2 0} imperfect
Perfect on {001}, very good on {010}, imperfect on {110}
Mohs Hardness
5.56-6.5
2
10
👆🏻
Chemical Composition
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)