Sardonyx and Crystal Opal Physical Properties

Sardonyx

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

2.55-2.701.97-2.22

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

1.7 Mohs Hardness

6.5-75.5-6.5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

SiO 2 + H 2OUlrich Henn and Claudio C.

Sardonyx and Crystal Opal Chemical Formula

While comparing Sardonyx 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 Sardonyx and Crystal Opal chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Blue Gemstones

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Sardonyx Vs Spinel

Sardonyx Vs Sodalite

Sardonyx and Crystal Opal Specific Gravity

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