Rhodolite and Melanite Physical Properties

Rhodolite

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

3.843.70-4.10

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

none, may show indistinct parting

Not Available

1.7 Mohs Hardness

7-7.56.5-7

2 10

1.8 Chemical Composition

(Mg,Fe)₃Al₂Si₃O₁₂

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

Rhodolite and Melanite Chemical Formula

While comparing Rhodolite 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 Rhodolite and Melanite chemical formula.

Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂
Chemical formula of Melanite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Rhodolite and Melanite Specific Gravity

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