Turquoise and Dumortierite Physical Properties

Turquoise

Dumortierite

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Physical Properties

Tenacity

Solubility

Soluble

Durability

Specific Gravity

2.30-2.903.26-3.41

1 7.18

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Fracture

Conchoidal

Fibrous, ConchoidalWalter Schumann

Cleavage

Good to perfect_usually N/A

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

Mohs Hardness

5-67-8.5

2 10

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Chemical Composition

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

AlAl₆O₃BSi₃O₁₈

Turquoise and Dumortierite Chemical Formula

While comparing Turquoise 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 Turquoise and Dumortierite chemical formula.

Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Turquoise and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Turquoise and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.