1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.30-2.402.55-2.63
1
7.18
1.13 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Uneven, Gems
1.14 Cleavage
{110} Perfect
{001} Perfect, {010} Good
1.15 Mohs Hardness
1.16 Chemical Composition
Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
KAlSi 3O 8Arthur Thomas , Gemstones (2009)