Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.95-4.103.63-3.79
1
7.18
👆🏻
Fracture
Uneven
Uneven, Conchoidal
Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
{110} Good
Mohs Hardness
3.5-43.5
2
10
👆🏻
Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references