1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Handbook of mineralogy (2001)
Uneven, Uneven, Gems, Sixth Edition (2006)
1.6 Cleavage
None
{001} Perfect, {010} Good
1.7 Mohs Hardness
1.8 Chemical Composition
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)