Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.95-4.103.05-3.08
1
7.18
👆🏻
Fracture
Uneven
Subconchoidal, Uneven, Conchoidal
Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
Poor on {100}
Mohs Hardness
3.5-45
2
10
👆🏻
Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)