Ruby and Bustamite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Partly soluble in HCl.
Durability
Not Available
Not Available
Specific Gravity
3.97-4.05
3.32-3.43
Fracture
Conchoidal
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
No true cleavage
{100} perfect; {110} and {1 1 0} good; {010} poor
Chemical Composition
Al 2 O 3
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ruby and Bustamite Chemical Formula
While comparing Ruby and Bustamite 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 Ruby and Bustamite chemical formula.
- Chemical formula of Ruby- Al 2 O 3
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ruby and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ruby and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.
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