Malachite and Zincite Physical Properties

Malachite

Zincite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-4.105.50-5.90

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on { 2 01} fair on {010}

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

1.7 Mohs Hardness

3.5-44

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

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

Malachite and Zincite Chemical Formula

While comparing Malachite and Zincite 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 Malachite and Zincite chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂
Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Malachite and Zincite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Zincite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Zincite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 5.50-5.90 whereas that of Zincite is 5.50-5.90.