Pyrite and Topaz Physical Properties

Pyrite

Topaz

Add ⊕

Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Specific Gravity

5.00-5.203.49-3.57

1 7.18

👆🏻

Fracture

Uneven, Conchoidal, ConchoidalWalter Schumann

Subconchoidal, Uneven, Conchoidal

Cleavage

Indistinct on {001}; partings on {011} and {111}

[001] Perfect

Mohs Hardness

6-6.58

2 10

👆🏻

Chemical Composition

FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Al₂SiO₄(F,OH)₂

Pyrite and Topaz Chemical Formula

While comparing Pyrite and Topaz 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 Topaz chemical formula.

Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Topaz- Al₂SiO₄(F,OH)₂

Compare Yellow Gemstones

Pyrite Vs Tinzenite

Pyrite Vs Topazolite

Pyrite Vs Wax Opal

Pyrite and Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.