1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.71-2.723.82-3.97
1
7.18
1.5 Fracture
Handbook of mineralogy (2001), Difficult, Fibrous
Subconchoidal, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
{???} Good
Perfect on [001] and [011]
1.7 Mohs Hardness
1.8 Chemical Composition
Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references