Tenacity
-
-
Solubility
Soluble
-
Durability
-
-
Specific Gravity
2.55-2.703.95-4.10
1
7.18
👆🏻
Fracture
Uneven, Splintery, Conchoidal
Uneven
Cleavage
Absent
{110} Perfect, {110} Perfect, {110} Perfect
Mohs Hardness
6.5-73.5-4
2
10
👆🏻
Chemical Composition
SiO2
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references