Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99992.24-2.29
1
7.18
👆🏻
Fracture
-
Uneven, Subconchoidal, Conchoidal
Cleavage
-
Very poor [100]
Mohs Hardness
-99995-5.5
2
10
👆🏻
Chemical Composition
SiO2, Al2O3, CaO, MgO, FeO
NaAlSi 2O 6 · H 2OMichael OâDonoghue , Gems, Sixth edition (2006) More from other references