Tenacity
-
Brittle
Solubility
-
Readily soluble in HF
Durability
-
-
Specific Gravity
2.24-2.292.86-2.94
1
7.18
👆🏻
Fracture
Uneven, Subconchoidal, Conchoidal
Conchoidal, Uneven
Cleavage
Very poor [100]
None observed
Mohs Hardness
5-5.56.5-7
2
10
👆🏻
Chemical Composition
NaAlSi 2O 6 · H 2OMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references