Anhydrite and Cordierite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-2.98
2.57-2.66
Fracture
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Subconchoidal, Conchoidal, Brittle
Cleavage
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Fair on {100}, poor on {001} and {010}
Chemical Composition
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Mg2Al4Si5O18
Anhydrite and Cordierite Chemical Formula
While comparing Anhydrite and Cordierite 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 Cordierite chemical formula.
- Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Cordierite- Mg2Al4Si5O18
Anhydrite and Cordierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Anhydrite and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.