Sunstone and Lazurite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.62-2.65
2.75
Fracture
Gemstones of the world (2001)
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
001
Imperfect on {110}
Chemical Composition
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Sunstone and Lazurite Chemical Formula
While comparing Sunstone and Lazurite 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 Sunstone and Lazurite chemical formula.
- Chemical formula of Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Sunstone and Lazurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sunstone and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 2.75 whereas that of Lazurite is 2.75.