1 Physical Properties
1.1 Tenacity
1.3 Solubility
Readily soluble in HF
Not Available
1.3 Durability
Not Available
Not Available
1.3 Specific Gravity
2.86-2.943.53-3.65
1
7.18
1.4 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Splintery, Brittle, Metallic
1.5 Cleavage
None observed
[100] perfect [010] imperfect with 79° angle between
1.10 Mohs Hardness
1.16 Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Not Available