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Obsidian
Obsidian

Riebeckite
Riebeckite



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Obsidian
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Riebeckite

Obsidian and Riebeckite 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
 
Brittle
-
-
3.28-3.44
Uneven, Splintery
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
5.0-6.0
Na2Fe2+3Fe3+2Si8O22(OH)2

Obsidian and Riebeckite Chemical Formula

While comparing Obsidian and Riebeckite 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 Riebeckite chemical formula.

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Obsidian and Riebeckite Specific Gravity

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