Hyalite and Lazurite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
Not Available
2.75
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Not Available
Imperfect on {110}
Mohs Hardness
5.5-6.5
5.5
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Hyalite and Lazurite Chemical Formula
While comparing Hyalite 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 Hyalite and Lazurite chemical formula.
- Chemical formula of Hyalite- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Hyalite and Lazurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hyalite and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hyalite and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Hyalite is 2.75 whereas that of Lazurite is 2.75.