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Fire Opal
Fire Opal

Diamond
Diamond



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Fire Opal
X
Diamond

Fire Opal and Diamond Physical Properties

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Physical Properties

Tenacity

-
-

Solubility

-
Soluble

Durability

-
-

Specific Gravity

1.97-2.223.50-3.53
1 7.18
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Fracture

Conchoidal
Conchoidal

Cleavage

None
111 (perfect in four directions)

Mohs Hardness

6-6.510
2 10
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Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
C

Fire Opal and Diamond Chemical Formula

While comparing Fire 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 Fire Opal and Diamond chemical formula.

  • Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Diamond- C

Fire Opal and Diamond Specific Gravity

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