Malachite and Augite Physical Properties

Malachite

Augite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-4.103.19-3.56

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Perfect on { 2 01} fair on {010}

{110} Perfect, {010} Indistinct

1.7 Mohs Hardness

3.5-45.5-6

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

Malachite and Augite Chemical Formula

While comparing Malachite and Augite 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 Augite chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂
Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

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Malachite and Augite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Augite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Augite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 3.19-3.56 whereas that of Augite is 3.19-3.56.