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Precious Opal and Bustamite Physical Properties


Bustamite and Precious Opal Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Partly soluble in HCl.   

Durability
Not Available   
Not Available   

Specific Gravity
1.98-2.25   
3.32-3.43   

Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Not Available   
{100} perfect; {110} and {1 1 0} good; {010} poor   

Mohs Hardness
5-6.5   
5.5-6   

Chemical Composition
SiO 2 · nH 2OGemdat.org , Management Team (2012)   
(Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Precious Opal and Bustamite Chemical Formula

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

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Precious Opal and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Precious Opal and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.

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