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Obsidian
Obsidian

Variscite
Variscite



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Obsidian
X
Variscite

Obsidian and Variscite 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
 
-
-
-
2.42-2.58
Conchoidal, Splintery, ConchoidalWalter Schumann
[010] perfect
4-5
AlPO4 · 2(H2O)

Obsidian and Variscite Chemical Formula

While comparing Obsidian and Variscite 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 Variscite chemical formula.

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Obsidian and Variscite Specific Gravity

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