Lazurite and Anhydrite Physical Properties
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.75
2.90-2.98
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Imperfect on {110}
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Lazurite and Anhydrite Chemical Formula
While comparing Lazurite 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 Lazurite and Anhydrite chemical formula.
- Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
- Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Lazurite and Anhydrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lazurite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.