1 Physical Properties
1.1 Tenacity
1.5 Solubility
Not Available
Not Available
1.7 Durability
Not Available
Not Available
1.8 Specific Gravity
2.45-2.503.28-3.32
1
7.18
1.13 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
1.14 Cleavage
Poor on {110}
{101} Distinct
1.15 Mohs Hardness
1.16 Chemical Composition
KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references