Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.95-4.103.80-4.15
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
perfect along [010] and [100]
Mohs Hardness
3.5-43.5-4
2
10
👆🏻
Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references