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Obsidian
Obsidian

Uvite
Uvite



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Obsidian
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Uvite

Obsidian and Uvite Physical Properties

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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
 
-
-
-
2.97-3.14
Uneven, Conchoidal
{1011} Indistinct
-9999
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Obsidian and Uvite Chemical Formula

While comparing Obsidian and Uvite 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 Uvite chemical formula.

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Obsidian and Uvite Specific Gravity

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