Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.05-3.213.32
1
7.18
👆🏻
Fracture
Uneven, Subconchoidal, Splintery
-
Cleavage
Good on {110}, poor on {100}
{???} Distinct, {???} Distinct, {???} Distinct
Mohs Hardness
7.5-9999
2
10
👆🏻
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
LiFe3+ (PO 4)(OH)Anthony et al , Handbook of mineralogy (2001)