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Andalusite
Andalusite

Labradorite
Labradorite



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Andalusite
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Labradorite

Andalusite and Labradorite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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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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2.69-2.72
Uneven, Conchoidal
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
6-6.5
(Na,Ca)1-2Si3-2O8

Andalusite and Labradorite Chemical Formula

While comparing Andalusite and Labradorite 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 Labradorite chemical formula.

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Andalusite and Labradorite Specific Gravity

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