Iolite and Pyrite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
insoluble in water
Durability
Not Available
Not Available
Specific Gravity
2.6-2.7
5.00-5.20
Fracture
Not Available
Uneven, Conchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Cleavage
3,1
Indistinct on {001}; partings on {011} and {111}
Mohs Hardness
7-7.5
6-6.5
Chemical Composition
Mg2Al4Si5O18
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Iolite and Pyrite Chemical Formula
While comparing Iolite 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 Iolite and Pyrite chemical formula.
- Chemical formula of Iolite- Mg2Al4Si5O18
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Iolite and Pyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Iolite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.