Anhydrite and Spinel Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
none
Durability
Not Available
Not Available
Specific Gravity
2.90-2.98
3.64-3.66
Fracture
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
None, but may exhibit slight parting
Chemical Composition
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
MgAl2O4
Anhydrite and Spinel Chemical Formula
While comparing Anhydrite and Spinel 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 Spinel chemical formula.
- Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Spinel- MgAl2O4
Anhydrite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Anhydrite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.