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Amethyst
Amethyst

Melanite
Melanite



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Amethyst
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Melanite

Amethyst and Melanite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
insoluble in common solvents
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.653.70-4.10
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Indiscernible
Not Available
1.7 Mohs Hardness
76.5-7
Amber
2 10
1.8 Chemical Composition
SiO2
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Amethyst and Melanite Chemical Formula

While comparing Amethyst and Melanite 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 Amethyst and Melanite chemical formula.

  • Chemical formula of Amethyst- SiO2
  • Chemical formula of Melanite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Amethyst and Melanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Melanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Melanite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 3.70-4.10 whereas that of Melanite is 3.70-4.10.