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Plumbogummite and Common Opal Physical Properties


Common Opal and Plumbogummite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.014   
1.98-2.50   

Fracture
Uneven, Conchoidal   
Conchoidal, Conchoidal, Gemstones of the world (2001)   

Cleavage
None   
Not Available   

Mohs Hardness
4-5   
5.5-6.5   

Chemical Composition
Not Available   
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)   

Optical Properties >>
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Plumbogummite and Common Opal Chemical Formula

While comparing Plumbogummite and Common 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 Plumbogummite and Common Opal chemical formula.

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Plumbogummite and Common Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Plumbogummite and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Plumbogummite and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Plumbogummite is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.

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