Almandine and Turquoise Physical Properties

Almandine

Turquoise

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.30

2.30-2.90

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

none

Good to perfect_usually N/A

1.7 Mohs Hardness

7-7.5

5-6

1.8 Chemical Composition

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

Almandine and Turquoise Chemical Formula

While comparing Almandine and Turquoise 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 Almandine and Turquoise chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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Almandine and Turquoise Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Turquoise Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Turquoise Optical Properties during the identification of gemstone. Specific gravity of Almandine is 2.30-2.90 whereas that of Turquoise is 2.30-2.90.