1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.2 Durability
Not Available
Not Available
1.4 Specific Gravity
2.58-2.912.98-3.10
1
7.18
1.15 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
1.16 Cleavage
Indiscernible
{100} Perfect, {110} Good, {011} Distinct
1.17 Mohs Hardness
1.18 Chemical Composition
SiO2
LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references