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Andradite
Andradite

Andesine
Andesine



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Andradite
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Andradite and Andesine Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.70-4.10
2.65-2.69
1.5 Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
1.6 Cleavage
none
Perfect on {001}, good on {010}
1.7 Mohs Hardness
6.5-7
6-6.5
1.8 Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
(Na,Ca)Al1-2Si3-2O8

Andradite and Andesine Chemical Formula

While comparing Andradite and Andesine 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 Andradite and Andesine chemical formula.

  • Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8

Andradite and Andesine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Andradite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.

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