Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.24-2.292.65-2.90
1
7.18
👆🏻
Fracture
Uneven, Subconchoidal, Conchoidal
-
Cleavage
Very poor [100]
{001} Perfect
Mohs Hardness
5-5.5-9999
2
10
👆🏻
Chemical Composition
NaAlSi 2O 6 · H 2OMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references