1 Physical Properties
1.2 Tenacity
Not Available
Not Available
1.4 Solubility
Not Available
Partly soluble in HCl.
1.6 Durability
Not Available
Not Available
1.8 Specific Gravity
Not Available3.32-3.43
1
7.18
1.9 Fracture
Not Available
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.11 Cleavage
Not Available
{100} perfect; {110} and {1 1 0} good; {010} poor
1.13 Mohs Hardness
1.15 Chemical Composition
Not Available
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references