Wax Opal and Crystal Opal Physical Properties

Wax Opal

Crystal Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.501.97-2.22

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

1.7 Mohs Hardness

5.5-6.55.5-6.5

2 10

1.8 Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

SiO 2 + H 2OUlrich Henn and Claudio C.

Wax Opal and Crystal Opal Chemical Formula

While comparing Wax Opal and Crystal 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 Wax Opal and Crystal Opal chemical formula.

Chemical formula of Wax Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Yellow Gemstones

Wax Opal Vs Garnet Malaia

Wax Opal Vs Zincite

Wax Opal Vs Zircon

Wax Opal and Crystal Opal Specific Gravity

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