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Grandidierite
Grandidierite

Violane
Violane



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Grandidierite
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Violane

Grandidierite and Violane 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.
 
-
-
-
3.22-3.40
Conchoidal
Perfect
5-6
(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)

Grandidierite and Violane Chemical Formula

While comparing Grandidierite and Violane 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 Violane chemical formula.

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Grandidierite and Violane Specific Gravity

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