Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.793.05-3.08
1
7.18
👆🏻
Fracture
-
Subconchoidal, Uneven, Conchoidal
Cleavage
{100} and {010} perfect
Poor on {100}
Mohs Hardness
65
2
10
👆🏻
Chemical Composition
LiNa(Zr,Ti,Hf)Si 6O 15Ulrich Henn and Claudio C.
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)