Afghanite and Dumortierite Physical Properties

Afghanite

Dumortierite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.55-2.65

Conchoidal

Perfect {10 1 0}

5.5-6

(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

3.26-3.41

Fibrous, ConchoidalWalter Schumann

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

7-8.5

AlAl₆O₃BSi₃O₁₈

Afghanite and Dumortierite Chemical Formula

While comparing Afghanite and Dumortierite 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 Afghanite and Dumortierite chemical formula.

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Afghanite Vs Glaucophane

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Afghanite Vs Kainite

Afghanite and Dumortierite Specific Gravity

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