Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.98-3.101.65-1.99
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven
Cleavage
{100} Perfect, {110} Good, {011} Distinct
{010} Perfect, {110} Perfect
Mohs Hardness
5.5-62-2.5
2
10
👆🏻
Chemical Composition
LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)