Pyrite and Boracite Physical Properties
Solubility
insoluble in water
Soluble
Specific Gravity
5.00-5.20
2.95-2.96
Fracture
Uneven, Conchoidal, ConchoidalWalter Schumann
Conchoidal
Cleavage
Indistinct on {001}; partings on {011} and {111}
None
Mohs Hardness
6-6.5
7-7.5
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pyrite and Boracite Chemical Formula
While comparing Pyrite and Boracite 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 Boracite chemical formula.
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Boracite- Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pyrite and Boracite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrite and Boracite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Boracite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 2.95-2.96 whereas that of Boracite is 2.95-2.96.