Peridot and Melanite Physical Properties

Peridot

Melanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.553.70-4.10

1 7.18

1.5 Fracture

Conchoidal

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Poor

Not Available

1.7 Mohs Hardness

6.5-76.5-7

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Peridot and Melanite Chemical Formula

While comparing Peridot 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 Peridot and Melanite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Melanite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Peridot and Melanite Specific Gravity

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