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Sellaite
Sellaite

Grandidierite
Grandidierite



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Sellaite
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Grandidierite

Sellaite and Grandidierite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.14-3.16
Conchoidal
Perfect on {010} and {110}
5-5.5
MgF 2Ulrich Henn and Claudio C.
 
-
-
-
2.85-3.00
Uneven
Perfect
7.5
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Sellaite and Grandidierite Chemical Formula

While comparing Sellaite and Grandidierite 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 Sellaite and Grandidierite chemical formula.

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Sellaite and Grandidierite Specific Gravity

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