1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
0.1 Durability
Not Available
Not Available
1.3 Specific Gravity
3.28-3.32Not Available
1
7.18
1.4 Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
(e.g. graphite).
1.5 Cleavage
{101} Distinct
{???} Imperfect, {???} Imperfect
1.6 Mohs Hardness
1.11 Chemical Composition
ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references
Not Available