1 Physical Properties
1.1 Tenacity
1.4 Solubility
Not Available
Not Available
1.5 Durability
Not Available
Not Available
1.6 Specific Gravity
2.45-2.502.90-3.10
1
7.18
1.10 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Splintery, Granular, Splintery, Granular, Gemstones (2009)
1.11 Cleavage
Poor on {110}
Not Available
1.12 Mohs Hardness
1.14 Chemical Composition
KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references