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