Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.89-4.183.76-3.77
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
-
Cleavage
{0001}, {11 2 0} imperfect
{110} Perfect, {110} Perfect
Mohs Hardness
5.55-6
2
10
👆🏻
Chemical Composition
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.