1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.23-3.262.74-2.90
1
7.18
1.5 Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Gemstones (2009), Splintery
1.6 Cleavage
Perfect on {010} imperfect on {100}
Perfect on {100} and {001}
1.7 Mohs Hardness
1.8 Chemical Composition
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.