1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.13 Fracture
Brittle, Uneven, Brittle, Uneven
Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
1.15 Cleavage
Perfect on {001}
Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}
1.17 Mohs Hardness
1.21 Chemical Composition
NaCa16Si23AlO60(OH)8•64(H2O)
(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.