Turquoise and Lazulite Physical Properties

Turquoise

Lazulite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.30-2.903.04-3.17

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Uneven, Uneven, Gemstones of the world (2001) More from other references

1.6 Cleavage

Good to perfect_usually N/A

{001} Indistinct, {???} Indistinct

1.7 Mohs Hardness

5-65.5

2 10

1.8 Chemical Composition

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Turquoise and Lazulite Chemical Formula

While comparing Turquoise and Lazulite 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 Lazulite chemical formula.

Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O
Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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Turquoise and Lazulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Turquoise and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.