1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.60-2.652.27-2.33
1
7.18
1.15 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
1.16 Cleavage
Perfect on {001}, very good on {010}, imperfect on {110}
Not Available
1.17 Mohs Hardness
1.20 Chemical Composition
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)