1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Uneven, Conchoidal, Conchoidal to uneven, Brittle
Uneven, Uneven, Gems, Sixth Edition (2006)
1.6 Cleavage
On {10 1 1} perfect; parting on {10 1 2}
From the Greek for oblique and fracture, descriptive of the cleavage
1.7 Mohs Hardness
1.8 Chemical Composition
MnCO3
(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)