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Alexandrite
Alexandrite

Almandine
Almandine



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Alexandrite
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Almandine

Alexandrite and Almandine Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.69-3.81
-
1,1 ; 3,2.
8.5
BeAl 2 O 4
 
-
-
-
3.95-4.30
Conchoidal
none
7-7.5
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Alexandrite and Almandine Chemical Formula

While comparing Alexandrite 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 Alexandrite and Almandine chemical formula.

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Alexandrite and Almandine Specific Gravity

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