Atacamite and Anhydrite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.745-3.776
2.90-2.98
Fracture
Conchoidal, Conchoidal, Brittle
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Perfect on {010}, fair on {101}
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Chemical Composition
Cu2Cl(OH)3
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Atacamite and Anhydrite Chemical Formula
While comparing Atacamite 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 Atacamite and Anhydrite chemical formula.
- Chemical formula of Atacamite- Cu2Cl(OH)3
- Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Atacamite and Anhydrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Atacamite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.