Augite and Charlesite Physical Properties

Augite

Charlesite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.19-3.561.79

1 7.18

1.5 Fracture

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

Irregular/uneven, Brittle, Metallic

1.6 Cleavage

{110} Perfect, {010} Indistinct

Perfect on {10bar10}

1.7 Mohs Hardness

5.5-62.5

2 10

1.8 Chemical Composition

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

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Augite and Charlesite Chemical Formula

While comparing Augite and Charlesite 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 Charlesite chemical formula.

Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

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Augite and Charlesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augite and Charlesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augite and Charlesite Optical Properties during the identification of gemstone. Specific gravity of Augite is 1.79 whereas that of Charlesite is 1.79.