Anhydrite and Fluorite Physical Properties
Solubility
Not Available
slightly water soluble and in hot hydrochloric acid
Durability
Not Available
Not Available
Specific Gravity
2.90-2.98
3.00-3.25
Fracture
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Octahedral, perfect on {111}, parting on {011}
Chemical Composition
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
CaF2
Anhydrite and Fluorite Chemical Formula
While comparing Anhydrite and Fluorite 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 Fluorite chemical formula.
- Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Fluorite- CaF2
Anhydrite and Fluorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Anhydrite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.