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Common Opal
Common Opal

Bytownite
Bytownite



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Common Opal
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Bytownite

Common Opal and Bytownite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
 
Brittle
-
-
2.72-2.75
Uneven
Perfect on [001], good on [010], imperfect on [110]
6-6.5
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Common Opal and Bytownite Chemical Formula

While comparing Common Opal and Bytownite 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 Bytownite chemical formula.

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Common Opal and Bytownite Specific Gravity

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