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Kyanite
Kyanite

Melanite
Melanite



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Kyanite
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Melanite

Kyanite and Melanite 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
3.53-3.653.70-4.10
Amber
1 7.18
1.5 Fracture
Splintery, Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
[100] perfect [010] imperfect with 79° angle between
Not Available
1.7 Mohs Hardness
4-76.5-7
Amber
2 10
1.8 Chemical Composition
Not Available
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Kyanite and Melanite Chemical Formula

While comparing Kyanite 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 Kyanite and Melanite chemical formula.

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

Kyanite and Melanite Specific Gravity

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