Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.89-4.182.55-2.63
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven
Cleavage
{0001}, {11 2 0} imperfect
{001} Perfect, {010} Good
Mohs Hardness
5.56-6.5
2
10
👆🏻
Chemical Composition
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KAlSi 3O 8Arthur Thomas , Gemstones (2009)