Pyrite and Kyanite Physical Properties

Pyrite

Kyanite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.203.53-3.65

1 7.18

1.5 Fracture

Uneven, Conchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

Splintery, Brittle, Metallic

1.6 Cleavage

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

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

6-6.54-7

2 10

1.8 Chemical Composition

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

Not Available

Pyrite and Kyanite Chemical Formula

While comparing Pyrite and Kyanite 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 Kyanite chemical formula.

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

Compare Yellow Gemstones

Pyrite Vs Rubellite

Pyrite Vs Rutilated Quartz

Pyrite Vs Sapphire

Pyrite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.