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Corundum
Corundum

Chrysoprase
Chrysoprase



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Corundum
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Corundum and Chrysoprase Physical Properties

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

Corundum and Chrysoprase Chemical Formula

While comparing Corundum and Chrysoprase 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 Corundum and Chrysoprase chemical formula.

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

Corundum and Chrysoprase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Corundum and Chrysoprase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Corundum and Chrysoprase Optical Properties during the identification of gemstone. Specific gravity of Corundum is 2.58-2.64 whereas that of Chrysoprase is 2.58-2.64.