Anhydrite and Hardystonite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-2.98
3.396-3.443
Fracture
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Brittle, Metallic
Cleavage
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
[001] good, [100] and [110] fair
Chemical Composition
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Anhydrite and Hardystonite Chemical Formula
While comparing Anhydrite and Hardystonite 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 Anhydrite and Hardystonite chemical formula.
- Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Anhydrite and Hardystonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Anhydrite and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.