Wax Opal and Sard Physical Properties

Wax Opal

Sard

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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

1.98-2.502.58-2.63

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

5.5-6.56.5-7

2 10

1.8 Chemical Composition

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

SiO 2Ulrich Henn and Claudio C.

Wax Opal and Sard Chemical Formula

While comparing Wax Opal and Sard 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 Sard chemical formula.

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

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Wax Opal and Sard Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wax Opal and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wax Opal and Sard Optical Properties during the identification of gemstone. Specific gravity of Wax Opal is 2.58-2.63 whereas that of Sard is 2.58-2.63.