1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.28-3.442.90-2.98
1
7.18
1.9 Fracture
Uneven, Splintery, Brittle
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
1.10 Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
1.11 Mohs Hardness
1.12 Chemical Composition
Not Available
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references