Rubellite and Pyrite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
insoluble in water
Durability
Not Available
Not Available
Specific Gravity
3.01-3.06
5.00-5.20
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Conchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Cleavage
Not Available
Indistinct on {001}; partings on {011} and {111}
Mohs Hardness
7-7.5
6-6.5
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Rubellite and Pyrite Chemical Formula
While comparing Rubellite 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 Rubellite and Pyrite chemical formula.
- Chemical formula of Rubellite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Rubellite and Pyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rubellite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Rubellite is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.