1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.3 Solubility
insoluble in water
Not Available
1.5 Durability
Not Available
Not Available
1.6 Specific Gravity
2.51-2.633.28-3.32
1
7.18
1.7 Fracture
Fibrous
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
1.8 Cleavage
Not Available
{101} Distinct
1.9 Mohs Hardness
1.12 Chemical Composition
Mg 3(Si 2O 5)(OH) 4Gemdat.org , Management Team (2012)
ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references