Phlogopite and Malachite Physical Properties

Phlogopite

Malachite

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1 Physical Properties

1.1 Tenacity

Tough

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.853.25-4.10

1 7.18

1.5 Fracture

None, Uneven

Conchoidal, Conchoidal, Gemstones (2009), Uneven

1.6 Cleavage

Perfect basal (001)

Perfect on { 2 01} fair on {010}

1.7 Mohs Hardness

2-2.53.5-4

2 10

1.8 Chemical Composition

Not Available

Cu₂CO₃(OH)₂

Phlogopite and Malachite Chemical Formula

While comparing Phlogopite 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 Phlogopite and Malachite chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂

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Phlogopite and Malachite Specific Gravity

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