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Beryl
Beryl

Andalusite
Andalusite



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Beryl
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Andalusite

Beryl and Andalusite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.60-2.90
Uneven, Conchoidal, Irregular
Imperfect on {0001}
7.5-8
Be3Al2Si6O18
 
-
-
-
3.05-3.21
Uneven, Subconchoidal, Splintery
Good on {110}, poor on {100}
7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Beryl and Andalusite Chemical Formula

While comparing Beryl and Andalusite 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 Beryl and Andalusite chemical formula.

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Beryl and Andalusite Specific Gravity

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