1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
insoluble in water
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.69-2.722.51-2.63
1
7.18
1.4 Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Fibrous
1.5 Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Not Available
1.6 Mohs Hardness
1.10 Chemical Composition
(Na,Ca)1-2Si3-2O8
Mg 3(Si 2O 5)(OH) 4Gemdat.org , Management Team (2012)