Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.05-3.084.95-5.0
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal
Uneven
Cleavage
Poor on {100}
Imperfect to indistinct on {10 1 0}, parting on {0001}
Mohs Hardness
54-5
2
10
👆🏻
Chemical Composition
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references