Lazurite and Rutile Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Insoluble in acids
Durability
Not Available
Not Available
Specific Gravity
2.75
4.20-4.30
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Imperfect on {110}
{110} good, 100 moderate, parting on {092} and {011}
Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Lazurite and Rutile Chemical Formula
While comparing Lazurite and Rutile 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 Rutile chemical formula.
- Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
- Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Lazurite and Rutile Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lazurite and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Rutile Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 4.20-4.30 whereas that of Rutile is 4.20-4.30.