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Grandidierite
Grandidierite

Williamsite
Williamsite



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Grandidierite
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Williamsite

Grandidierite and Williamsite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.85-3.00
Uneven
Perfect
7.5
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
 
-
-
-
2.51-2.63
Conchoidal
Perfect
4
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Grandidierite and Williamsite Chemical Formula

While comparing Grandidierite 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 Grandidierite and Williamsite chemical formula.

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Grandidierite and Williamsite Specific Gravity

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