Pyrite and Bustamite Physical Properties
Solubility
insoluble in water
Partly soluble in HCl.
Specific Gravity
5.00-5.20
3.32-3.43
Fracture
Uneven, Conchoidal, ConchoidalWalter Schumann
Conchoidal
Cleavage
Indistinct on {001}; partings on {011} and {111}
{100} perfect; {110} and {1 1 0} good; {010} poor
Mohs Hardness
6-6.5
5.5-6
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pyrite and Bustamite Chemical Formula
While comparing Pyrite 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 Pyrite and Bustamite chemical formula.
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pyrite and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.