1 Physical Properties
1.1 Tenacity
1.3 Solubility
Not Available
Not Available
1.4 Durability
Not Available
Not Available
1.6 Specific Gravity
2.55-2.703.70-4.10
1
7.18
1.7 Fracture
Not Available
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
1.8 Cleavage
1.9 Mohs Hardness
1.13 Chemical Composition
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)