Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.77
2.58-2.64
Fracture
Uneven, Conchoidal, Brittle, Metallic, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Cleavage
None
Absent
Mohs Hardness
6.5-7.5
6.5-7
Chemical Composition
Ca 3Cr 2(SiO 4) 3Ulrich Henn and Claudio C.
SiO2
