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Common Opal and Pyrargyrite Physical Properties


Pyrargyrite and Common Opal Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
1.98-2.50   
5.85   

Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)   
Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle   

Cleavage
Not Available   
Distinct on {10 1 1}, imperfect on {01 1 2}   

Mohs Hardness
5.5-6.5   
2.5-3   

Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)   
Ag 3SbS 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Common Opal and Pyrargyrite Chemical Formula

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

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Common Opal and Pyrargyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Common Opal and Pyrargyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Common Opal and Pyrargyrite Optical Properties during the identification of gemstone. Specific gravity of Common Opal is 5.85 whereas that of Pyrargyrite is 5.85.

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