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Spessartine and Precious Opal Physical Properties


Precious Opal and Spessartine Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.12-4.18   
1.98-2.25   

Fracture
ConchoidalArthur Thomas, Conchoidal, Brittle   
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references   

Cleavage
{???} Distinct   
Not Available   

Mohs Hardness
7-7.5   
5-6.5   

Chemical Composition
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   
SiO 2 · nH 2OGemdat.org , Management Team (2012)   

Optical Properties >>
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Spessartine and Precious Opal Chemical Formula

While comparing Spessartine and Precious Opal 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 Spessartine and Precious Opal chemical formula.

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Spessartine and Precious Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spessartine and Precious Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spessartine and Precious Opal Optical Properties during the identification of gemstone. Specific gravity of Spessartine is 1.98-2.25 whereas that of Precious Opal is 1.98-2.25.

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Red Gemstones


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