Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.95-4.103.62-3.80
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
None
Mohs Hardness
3.5-47-7.5
2
10
👆🏻
Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mg 3(Al,Cr) 2(SiO 4) 3Gemdat.org , Management Team (2012)