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Fire Opal
Fire Opal

Nuummite
Nuummite



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Fire Opal
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Nuummite

Fire Opal and Nuummite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.97-2.223.18-3.37
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

None
Perfect on 210

Mohs Hardness

6-6.55.5-6
2 10
👆🏻

Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
Na(Fe,Mg)7(AlSi7O22)(OH)2

Fire Opal and Nuummite Chemical Formula

While comparing Fire Opal and Nuummite 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 Nuummite chemical formula.

  • Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Nuummite- Na(Fe,Mg)7(AlSi7O22)(OH)2

Fire Opal and Nuummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fire Opal and Nuummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fire Opal and Nuummite Optical Properties during the identification of gemstone. Specific gravity of Fire Opal is 3.18-3.37 whereas that of Nuummite is 3.18-3.37.