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Sheen Obsidian
Sheen Obsidian

Sillimanite
Sillimanite



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Sheen Obsidian
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Sillimanite

Sheen Obsidian and Sillimanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.33-2.50
Conchoidal
None
5-5.5
Volcanic glass
 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Sheen Obsidian and Sillimanite Chemical Formula

While comparing Sheen Obsidian and Sillimanite 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 Sheen Obsidian and Sillimanite chemical formula.

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Sheen Obsidian and Sillimanite Specific Gravity

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