1 Physical Properties
1.1 Tenacity
1.2 Solubility
Partly soluble in HCl.
Water-soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Brittle, Metallic
1.6 Cleavage
{100} perfect; {110} and {1 1 0} good; {010} poor
Perfect {001}, three directions cubic
1.7 Mohs Hardness
1.8 Chemical Composition
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaCl