Amethyst and Bustamite Physical Properties
Tenacity
Not Available
Not Available
Solubility
insoluble in common solvents
Partly soluble in HCl.
Durability
Not Available
Not Available
Specific Gravity
2.65
3.32-3.43
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Indiscernible
{100} perfect; {110} and {1 1 0} good; {010} poor
Chemical Composition
SiO2
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Amethyst and Bustamite Chemical Formula
While comparing Amethyst 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 Amethyst and Bustamite chemical formula.
- Chemical formula of Amethyst- SiO2
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Amethyst and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amethyst and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.