Wood Opal and Smoky Quartz Physical Properties

Wood Opal

Smoky Quartz

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.502.65

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

{0110} Indistinct

1.7 Mohs Hardness

5.5-6.57

2 10

1.8 Chemical Composition

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

SiO₂

Wood Opal and Smoky Quartz Chemical Formula

While comparing Wood Opal and Smoky Quartz 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 Wood Opal and Smoky Quartz chemical formula.

Chemical formula of Wood Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Smoky Quartz- SiO₂

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Wood Opal Vs Druzy

Wood Opal Vs Alunite

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Wood Opal and Smoky Quartz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wood Opal and Smoky Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wood Opal and Smoky Quartz Optical Properties during the identification of gemstone. Specific gravity of Wood Opal is 2.65 whereas that of Smoky Quartz is 2.65.