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Obsidian
Obsidian

Verdelite
Verdelite



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Obsidian
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Verdelite

Obsidian and Verdelite 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
 
-
-
-
2.90-3.40
Conchoidal
Indiscernible
7-7.5
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Obsidian and Verdelite Chemical Formula

While comparing Obsidian and Verdelite 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 Verdelite chemical formula.

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Obsidian and Verdelite Specific Gravity

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