Phlogopite and Augite Physical Properties

Phlogopite

Augite

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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

2.78-2.853.19-3.56

1 7.18

1.5 Fracture

None, Uneven

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

1.6 Cleavage

Perfect basal (001)

{110} Perfect, {010} Indistinct

1.7 Mohs Hardness

2-2.55.5-6

2 10

1.8 Chemical Composition

Not Available

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

Phlogopite and Augite Chemical Formula

While comparing Phlogopite 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 Phlogopite and Augite 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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Phlogopite and Augite Specific Gravity

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