Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.23-3.263.05-3.08
1
7.18
👆🏻
Fracture
Conchoidal
Subconchoidal, Uneven, Conchoidal
Cleavage
Perfect on {010} imperfect on {100}
Poor on {100}
Mohs Hardness
6.5-75
2
10
👆🏻
Chemical Composition
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)