1 Physical Properties
2.2 Tenacity
2.3 Solubility
Not Available
Not Available
2.6 Durability
Not Available
Not Available
2.8 Specific Gravity
3.48-3.602.90-2.98
1
7.18
1.4 Fracture
Sub-Conchoidal, Conchoidal, Brittle
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
1.5 Cleavage
Distinct on [110], parting on {221}
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
1.6 Mohs Hardness
1.12 Chemical Composition
Not Available
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references