Augite and Phlogopite Physical Properties

Augite

Phlogopite

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1 Physical Properties

1.1 Tenacity

Not Available

Tough

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.19-3.562.78-2.85

1 7.18

1.5 Fracture

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

None, Uneven

1.6 Cleavage

{110} Perfect, {010} Indistinct

Perfect basal (001)

1.7 Mohs Hardness

5.5-62-2.5

2 10

1.8 Chemical Composition

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

Not Available

Augite and Phlogopite Chemical Formula

While comparing Augite and Phlogopite 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 Augite and Phlogopite chemical formula.

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

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Augite and Phlogopite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augite and Phlogopite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augite and Phlogopite Optical Properties during the identification of gemstone. Specific gravity of Augite is 2.78-2.85 whereas that of Phlogopite is 2.78-2.85.