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Andalusite
Andalusite

Elaeolite
Elaeolite



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Andalusite
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Elaeolite

Andalusite and Elaeolite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.05-3.212.55-2.67
1 7.18
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Fracture

Uneven, Subconchoidal, Splintery
-

Cleavage

Good on {110}, poor on {100}
-

Mohs Hardness

7.55.5-6
2 10
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Chemical Composition

Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
Na, K, Ca, H, O, Si, Al

Andalusite and Elaeolite Chemical Formula

While comparing Andalusite and Elaeolite 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 Elaeolite chemical formula.

  • Chemical formula of Andalusite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
  • Chemical formula of Elaeolite- Na, K, Ca, H, O, Si, Al

Andalusite and Elaeolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Elaeolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Elaeolite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 2.55-2.67 whereas that of Elaeolite is 2.55-2.67.