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Andradite
Andradite

Williamsite
Williamsite



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Andradite
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Williamsite

Andradite and Williamsite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.70-4.10
Conchoidal, Uneven
none
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
 
-
-
-
2.51-2.63
Conchoidal
Perfect
4
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Andradite and Williamsite Chemical Formula

While comparing Andradite and Williamsite 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 Andradite and Williamsite chemical formula.

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Andradite and Williamsite Specific Gravity

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