1 Physical Properties
1.1 Tenacity
1.2 Solubility
Nearly insoluble in HCl and HNO3
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Conchoidal, Brittle
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
1.6 Cleavage
Distinct on {010}
{001} Good
1.7 Mohs Hardness
1.11 Chemical Composition
Not Available
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)