Poldervaartite and Turquoise Physical Properties

Poldervaartite

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

2.912.30-2.90

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

None

Good to perfect_usually N/A

1.7 Mohs Hardness

Not Available5-6

2 10

1.8 Chemical Composition

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

Poldervaartite and Turquoise Chemical Formula

While comparing Poldervaartite 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 Poldervaartite and Turquoise chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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Poldervaartite and Turquoise Specific Gravity

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