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Andalusite
Andalusite

Emerald
Emerald



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Andalusite
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Emerald

Andalusite and Emerald Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
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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
 
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Hard
2.67-2.78
Uneven, ConchoidalWalter Schumann
Imperfect on the [0001]
7.5-8
Be3Al2SiO6

Andalusite and Emerald Chemical Formula

While comparing Andalusite and Emerald 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 Andalusite and Emerald chemical formula.

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Andalusite and Emerald Specific Gravity

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