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Iddingsite and Obsidian Physical Properties


Obsidian and Iddingsite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.5-2.8   
2.35-2.60   

Fracture
Not Available   
Conchoidal, ConchoidalWalter Schumann, Conchoidal   

Cleavage
{???} Perfect   
Not Available   

Mohs Hardness
3   
5-5.5   

Chemical Composition
MgO.Fe2O3.3SiO2•4(H2O)   
Not Available   

Optical Properties >>
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Iddingsite and Obsidian Chemical Formula

While comparing Iddingsite and Obsidian 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 Iddingsite and Obsidian chemical formula.

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Iddingsite and Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iddingsite and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iddingsite and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Iddingsite is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.

Brown Gemstones

Brown Gemstones


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