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Dumortierite
Dumortierite

Cuprite
Cuprite



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Dumortierite
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Cuprite

Dumortierite and Cuprite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

3.26-3.415.85-6.15
1 7.18
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Fracture

Fibrous, ConchoidalWalter Schumann
Conchoidal

Cleavage

Distinct on {100}, poor on {110}; parting on {001}
Fair in four directions forming octahedrons

Mohs Hardness

7-8.53.5-4
2 10
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Chemical Composition

AlAl6O3BSi3O18
Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Dumortierite and Cuprite Chemical Formula

While comparing Dumortierite and Cuprite 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 Cuprite chemical formula.

  • Chemical formula of Dumortierite- AlAl6O3BSi3O18
  • Chemical formula of Cuprite- Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Dumortierite and Cuprite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.