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Crystal Opal
Crystal Opal

Diamond
Diamond



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X
Crystal Opal
X
Diamond

Crystal Opal and Diamond Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
Soluble

Durability

-
-

Specific Gravity

1.97-2.223.50-3.53
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

None
111 (perfect in four directions)

Mohs Hardness

5.5-6.510
2 10
👆🏻

Chemical Composition

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

Crystal Opal and Diamond Chemical Formula

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

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

Crystal Opal and Diamond Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crystal Opal and Diamond Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crystal Opal and Diamond Optical Properties during the identification of gemstone. Specific gravity of Crystal Opal is 3.50-3.53 whereas that of Diamond is 3.50-3.53.