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Obsidian
Obsidian

Gahnospinel
Gahnospinel



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Obsidian
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Gahnospinel

Obsidian and Gahnospinel 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
 
-
-
-
3.65-4.55
Conchoidal
None, but may exhibit slight parting
7.5-8
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Obsidian and Gahnospinel Chemical Formula

While comparing Obsidian and Gahnospinel 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 Gahnospinel chemical formula.

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Obsidian and Gahnospinel Specific Gravity

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