1 Physical Properties
2.2 Tenacity
2.3 Solubility
Partly soluble in HCl.
Not Available
2.4 Durability
Not Available
Not Available
2.6 Specific Gravity
3.32-3.433.87-4.14
1
7.18
2.9 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
2.10 Cleavage
{100} perfect; {110} and {1 1 0} good; {010} poor
Poor on {120}, in traces on {001}
2.11 Mohs Hardness
2.12 Chemical Composition
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references