Anorthite and Augite Physical Properties

Anorthite

Augite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

2.77

Uneven

Perfect [001] good [010] poor [110]

6-6.5

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

3.19-3.56

Uneven, Conchoidal

{110} Perfect, {010} Indistinct

5.5-6

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

Anorthite and Augite Chemical Formula

While comparing Anorthite 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 Anorthite and Augite chemical formula.

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Anorthite and Augite Specific Gravity

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