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Almandine
Almandine

Bertrandite
Bertrandite



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Almandine
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Bertrandite

Almandine and Bertrandite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.95-4.30
Conchoidal
none
7-7.5
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
 
-
-
-
2.59-2.60
-
{001} Perfect, {110} Distinct, {101} Distinct
6-7
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Almandine and Bertrandite Chemical Formula

While comparing Almandine and Bertrandite 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 Almandine and Bertrandite chemical formula.

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Almandine and Bertrandite Specific Gravity

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