1 Physical Properties
1.2 Tenacity
1.4 Solubility
Not Available
Not Available
1.6 Durability
Not Available
Not Available
1.8 Specific Gravity
1.12 Fracture
(e.g. graphite).
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.13 Cleavage
{010} Good
Perfect on {110} at 56° and 124°; partings on {010} and {100}
1.14 Mohs Hardness
1.16 Chemical Composition
AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.