Zincite and Melanite Physical Properties

Zincite

Melanite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.50-5.903.70-4.10

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

On {10 1 0}, perfect; parting on {000 1 }

Not Available

1.7 Mohs Hardness

46.5-7

2 10

1.8 Chemical Composition

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Zincite and Melanite Chemical Formula

While comparing Zincite 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 Zincite and Melanite chemical formula.

Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Melanite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Zincite and Melanite Specific Gravity

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