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Coral
Coral

Andalusite
Andalusite



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Coral
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Andalusite

Coral and Andalusite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.60-2.70
Irregular
None
3-4
CaCO 3Ulrich Henn and Claudio C.
 
-
-
-
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

Coral and Andalusite Chemical Formula

While comparing Coral 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 Coral and Andalusite chemical formula.

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Coral and Andalusite Specific Gravity

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