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Tortoiseshell
Tortoiseshell

Crystal Opal
Crystal Opal



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Tortoiseshell
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Crystal Opal

Tortoiseshell and Crystal Opal Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.25-1.351.97-2.22
1 7.18
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Fracture

-
Conchoidal

Cleavage

None
None

Mohs Hardness

-99995.5-6.5
2 10
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Chemical Composition

-
SiO 2 + H 2OUlrich Henn and Claudio C.

Tortoiseshell and Crystal Opal Chemical Formula

While comparing Tortoiseshell 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 Tortoiseshell and Crystal Opal chemical formula.

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

Tortoiseshell and Crystal Opal Specific Gravity

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