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Obsidian
Obsidian

Sapphirine
Sapphirine



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Obsidian
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Sapphirine

Obsidian and Sapphirine Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.35-2.60
Conchoidal, ConchoidalWalter Schumann
None
5-5.5
SiO2
 
-
-
-
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

Obsidian and Sapphirine Chemical Formula

While comparing Obsidian and Sapphirine 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 Obsidian and Sapphirine chemical formula.

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Obsidian and Sapphirine Specific Gravity

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