Turquoise and Anhydrite Physical Properties

Turquoise

Anhydrite

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

2.30-2.902.90-2.98

1 7.18

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Fracture

Conchoidal

Cleavage

Good to perfect_usually N/A

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Mohs Hardness

5-63.5

2 10

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Chemical Composition

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Turquoise and Anhydrite Chemical Formula

While comparing Turquoise and Anhydrite 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 Anhydrite chemical formula.

Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Turquoise and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Turquoise and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.