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Sapphirine
Sapphirine

Common Opal
Common Opal



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Sapphirine
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Common Opal

Sapphirine and Common Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.40-3.58
Conchoidal, Uneven
{010} Perfect
7.5
(Al,Mg) 8(Al,Si) 6O 20Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Sapphirine and Common Opal Chemical Formula

While comparing Sapphirine 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 Sapphirine and Common Opal chemical formula.

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Sapphirine and Common Opal Specific Gravity

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