Bustamite and Lazurite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Partly soluble in HCl.
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.32-3.43
2.75
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{100} perfect; {110} and {1 1 0} good; {010} poor
Imperfect on {110}
Chemical Composition
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Bustamite and Lazurite Chemical Formula
While comparing Bustamite 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 Bustamite and Lazurite chemical formula.
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Bustamite and Lazurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bustamite and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 2.75 whereas that of Lazurite is 2.75.