Malachite and Piemontite Physical Properties

Malachite

Piemontite

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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

3.25-4.10Not Available

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

Uneven, Splintery

1.6 Cleavage

Perfect on { 2 01} fair on {010}

[001] good, [100] distinct

1.7 Mohs Hardness

3.5-46-6.5

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

Not Available

Malachite and Piemontite Chemical Formula

While comparing Malachite and Piemontite 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 Piemontite chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂

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Malachite and Piemontite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Piemontite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Piemontite Optical Properties during the identification of gemstone. Specific gravity of Malachite is Not Available whereas that of Piemontite is Not Available.