1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Insoluble in acids
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
1.6 Cleavage
{110} good, 100 moderate, parting on {092} and {011}
Not Available
1.7 Mohs Hardness
1.8 Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 2 MgAl 2 BSi 4 O 15 OH Gemdat.org, Management Team (2012)