Lazurite and Pyrargyrite Physical Properties
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.75
5.85
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle
Cleavage
Imperfect on {110}
Distinct on {10 1 1}, imperfect on {01 1 2}
Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Lazurite and Pyrargyrite Chemical Formula
While comparing Lazurite and Pyrargyrite 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 Pyrargyrite chemical formula.
- Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
- Chemical formula of Pyrargyrite- Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Lazurite and Pyrargyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lazurite and Pyrargyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Pyrargyrite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 5.85 whereas that of Pyrargyrite is 5.85.