Piemontite and Malachite Physical Properties

Piemontite

Malachite

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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

Not Available3.25-4.10

1 7.18

1.5 Fracture

Uneven, Splintery

Conchoidal, Conchoidal, Gemstones (2009), Uneven

1.6 Cleavage

[001] good, [100] distinct

Perfect on { 2 01} fair on {010}

1.7 Mohs Hardness

6-6.53.5-4

2 10

1.8 Chemical Composition

Not Available

Cu₂CO₃(OH)₂

Piemontite and Malachite Chemical Formula

While comparing Piemontite and Malachite 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 Piemontite and Malachite chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂

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Piemontite and Malachite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Piemontite and Malachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Piemontite and Malachite Optical Properties during the identification of gemstone. Specific gravity of Piemontite is 3.25-4.10 whereas that of Malachite is 3.25-4.10.