2 Physical Properties
2.2 Tenacity
2.4 Solubility
Not Available
Not Available
2.7 Durability
Not Available
Not Available
2.9 Specific Gravity
Not Available3.50-3.60
1
7.18
2.17 Fracture
Not Available
Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
2.18 Cleavage
Not Available
Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}
2.19 Mohs Hardness
2.20 Chemical Composition
Not Available
(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.