Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.05-3.082.54-2.61
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal
Uneven
Cleavage
Poor on {100}
{001} Perfect, {010} Good
Mohs Hardness
56
2
10
👆🏻
Chemical Composition
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)