Austinite and Anhydrite Physical Properties
Solubility
Easily soluble in cold dilute HCl
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.12
2.90-2.98
Fracture
Brittle, Uneven, Brittle, Uneven
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Good in two directions parallel to the prism faces {110}
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Chemical Composition
CaZn(AsO4)(OH)
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Austinite and Anhydrite Chemical Formula
While comparing Austinite and Anhydrite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Austinite and Anhydrite chemical formula.
- Chemical formula of Austinite- CaZn(AsO4)(OH)
- Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Austinite and Anhydrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Austinite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.