1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.8 Fracture
Uneven, Conchoidal
Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
1.9 Cleavage
None
Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}
1.10 Mohs Hardness
1.12 Chemical Composition
Not Available
(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.