Dumortierite and Augite Physical Properties

Dumortierite

Augite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.26-3.41

Fibrous, ConchoidalWalter Schumann

Distinct on {100}, poor on {110}; parting on {001}

7-8.5

AlAl₆O₃BSi₃O₁₈

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)

Dumortierite and Augite Chemical Formula

While comparing Dumortierite 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 Dumortierite and Augite chemical formula.

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Dumortierite and Augite Specific Gravity

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