Turquoise and Fire Opal Physical Properties

Turquoise

Fire Opal

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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

2.30-2.901.97-2.22

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

Good to perfect_usually N/A

Not Available

1.7 Mohs Hardness

5-66-6.5

2 10

1.8 Chemical Composition

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Turquoise and Fire Opal Chemical Formula

While comparing Turquoise and Fire Opal 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 Fire Opal chemical formula.

Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O
Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

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Turquoise and Fire Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Turquoise and Fire Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Fire Opal Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 1.97-2.22 whereas that of Fire Opal is 1.97-2.22.