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Andesine
Andesine

Corundum
Corundum



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Andesine
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Corundum

Andesine and Corundum Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
insoluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.65-2.693.90-4.05
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
Uneven, Uneven, Gems, Difficult, Fibrous
1.6 Cleavage
Perfect on {001}, good on {010}
None – parting in 3 directions
1.7 Mohs Hardness
6-6.59
Amber
2 10
1.8 Chemical Composition
(Na,Ca)Al1-2Si3-2O8
Al 2O 3Arthur Thomas , Gemstones (2009)

Andesine and Corundum Chemical Formula

While comparing Andesine 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 Andesine and Corundum chemical formula.

  • Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
  • Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)

Andesine and Corundum Specific Gravity

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