Dumortierite and Pyrite Physical Properties

Dumortierite

Pyrite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.26-3.415.00-5.20

1 7.18

1.5 Fracture

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

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

1.6 Cleavage

Distinct on {100}, poor on {110}; parting on {001}

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

1.7 Mohs Hardness

7-8.56-6.5

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

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

Dumortierite and Pyrite Chemical Formula

While comparing Dumortierite 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 Dumortierite and Pyrite chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Dumortierite and Pyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.