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Dumortierite
Dumortierite

Cryolite
Cryolite



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Dumortierite
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Cryolite

Dumortierite and Cryolite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

3.26-3.412.97
1 7.18
👆🏻

Fracture

Fibrous, ConchoidalWalter Schumann
Uneven

Cleavage

Distinct on {100}, poor on {110}; parting on {001}
None observed

Mohs Hardness

7-8.52.5
2 10
👆🏻

Chemical Composition

AlAl6O3BSi3O18
Na 3AlF 6Ulrich Henn and Claudio C.

Dumortierite and Cryolite Chemical Formula

While comparing Dumortierite and Cryolite 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 Cryolite chemical formula.

  • Chemical formula of Dumortierite- AlAl6O3BSi3O18
  • Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

Dumortierite and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 2.97 whereas that of Cryolite is 2.97.