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Fire Opal and Hodgkinsonite Physical Properties


Hodgkinsonite and Fire Opal Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
1.97-2.22   
4.06-4.08   

Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)   
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic   

Cleavage
Not Available   
{???} Perfect   

Mohs Hardness
6-6.5   
4.5-5   

Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references   
Mn2+ Zn 2SiO 4(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Fire Opal and Hodgkinsonite Chemical Formula

While comparing Fire Opal and Hodgkinsonite 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 Hodgkinsonite chemical formula.

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Fire Opal and Hodgkinsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fire Opal and Hodgkinsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fire Opal and Hodgkinsonite Optical Properties during the identification of gemstone. Specific gravity of Fire Opal is 4.06-4.08 whereas that of Hodgkinsonite is 4.06-4.08.

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