Lazurite and Caledonite Physical Properties
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.75
5.6-5.76
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Cleavage
Imperfect on {110}
[001] perfect; [100] distinct
Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Lazurite and Caledonite Chemical Formula
While comparing Lazurite and Caledonite 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 Caledonite chemical formula.
- Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
- Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Lazurite and Caledonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lazurite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.