1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.5 Fracture
Brittle, Metallic, Brittle, Metallic
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
2.6 Cleavage
Perfect on {001}
Not Available
2.7 Mohs Hardness
2.11 Chemical Composition
Ca(Mg,Al)3(Al3Si)O10(OH)2
Al 2SiO 5Arthur Thomas , Gemstones (2009)