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Riebeckite and Almandine Physical Properties


Almandine and Riebeckite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.28-3.44   
3.95-4.30   

Fracture
Uneven, Splintery, Brittle   
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal   

Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}   
none   

Mohs Hardness
5.0-6.0   
7-7.5   

Chemical Composition
Not Available   
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   

Optical Properties >>
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Riebeckite and Almandine Chemical Formula

While comparing Riebeckite and Almandine 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 Riebeckite and Almandine chemical formula.

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Riebeckite and Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Riebeckite and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riebeckite and Almandine Optical Properties during the identification of gemstone. Specific gravity of Riebeckite is 3.95-4.30 whereas that of Almandine is 3.95-4.30.

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