Topaz and Augite Physical Properties

Topaz

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

3.49-3.573.19-3.56

1 7.18

1.5 Fracture

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

[001] Perfect

{110} Perfect, {010} Indistinct

1.7 Mohs Hardness

85.5-6

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

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

Topaz and Augite Chemical Formula

While comparing Topaz 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 Topaz and Augite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

Compare Gems for Sagittarius

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Topaz and Augite Specific Gravity

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