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Andradite
Andradite

Mellite
Mellite



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Andradite
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Mellite

Andradite and Mellite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.70-4.101.58-1.60
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
1.6 Cleavage
none
{011} Imperfect
1.7 Mohs Hardness
6.5-72
Amber
2 10
1.8 Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Andradite and Mellite Chemical Formula

While comparing Andradite and Mellite 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 Mellite chemical formula.

  • Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Andradite and Mellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Mellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Mellite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 1.58-1.60 whereas that of Mellite is 1.58-1.60.