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Cryolite
Cryolite

Corundum
Corundum



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Cryolite
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Corundum

Cryolite and Corundum Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Soluble
insoluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.973.90-4.05
Amber
1 7.18
1.5 Fracture
Uneven
Uneven, Uneven, Gems, Difficult, Fibrous
1.6 Cleavage
None observed
None – parting in 3 directions
1.7 Mohs Hardness
2.59
Amber
2 10
1.8 Chemical Composition
Na 3AlF 6Ulrich Henn and Claudio C.
Al 2O 3Arthur Thomas , Gemstones (2009)

Cryolite and Corundum Chemical Formula

While comparing Cryolite and Corundum 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 Cryolite and Corundum chemical formula.

  • Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
  • Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)

Cryolite and Corundum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cryolite and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Corundum Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 3.90-4.05 whereas that of Corundum is 3.90-4.05.