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Chrysoprase
Chrysoprase

Corundum
Corundum



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Chrysoprase
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Corundum

Chrysoprase and Corundum Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
insoluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.58-2.64
3.90-4.05
1.5 Fracture
Gems, Sixth Edition (2006)
Uneven, Uneven, Gems, Difficult, Fibrous
1.6 Cleavage
None
None – parting in 3 directions
1.7 Mohs Hardness
6.5-7
9
1.8 Chemical Composition
SiO2 (with a high level of nickel impurities )
Al 2O 3Arthur Thomas , Gemstones (2009)

Chrysoprase and Corundum Chemical Formula

While comparing Chrysoprase 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 Chrysoprase and Corundum chemical formula.

  • Chemical formula of Chrysoprase- SiO2 (with a high level of nickel impurities )
  • Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)

Chrysoprase and Corundum Specific Gravity

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