Rosasite and Melanite Physical Properties

Rosasite

Melanite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.23.70-4.10

1 7.18

1.5 Fracture

Splintery

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

1.6 Cleavage

Perfect on {100} and {010}

Not Available

1.7 Mohs Hardness

46.5-7

2 10

1.8 Chemical Composition

Not Available

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

Rosasite and Melanite Chemical Formula

While comparing Rosasite 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 Rosasite and Melanite chemical formula.

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

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Rosasite and Melanite Specific Gravity

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