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Precious Opal and Emerald Physical Properties


Emerald and Precious Opal Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
1.98-2.25   
2.67-2.78   

Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Not Available   
Imperfect on the [0001]   

Mohs Hardness
5-6.5   
7.5-8   

Chemical Composition
SiO 2 · nH 2OGemdat.org , Management Team (2012)   
Be3Al2SiO6   

Optical Properties >>
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Precious Opal and Emerald Chemical Formula

While comparing Precious Opal and Emerald 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 Emerald chemical formula.

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Precious Opal and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Precious Opal and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Emerald Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 2.67-2.78 whereas that of Emerald is 2.67-2.78.

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Blue Gemstones


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