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Fire Opal
Fire Opal

Cryolite
Cryolite



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Fire Opal
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Cryolite

Fire Opal and Cryolite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

1.97-2.222.97
1 7.18
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Fracture

Conchoidal
Uneven

Cleavage

None
None observed

Mohs Hardness

6-6.52.5
2 10
👆🏻

Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
Na 3AlF 6Ulrich Henn and Claudio C.

Fire Opal and Cryolite Chemical Formula

While comparing Fire Opal and Cryolite 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 Cryolite chemical formula.

  • Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

Fire Opal and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fire Opal and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fire Opal and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Fire Opal is 2.97 whereas that of Cryolite is 2.97.