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Weloganite
Weloganite

Andalusite
Andalusite



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Weloganite
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Andalusite

Weloganite and Andalusite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.20-3.223.05-3.21
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Subconchoidal, Splintery

Cleavage

Perfect on pseudo {0001}
Good on {110}, poor on {100}

Mohs Hardness

37.5
2 10
👆🏻

Chemical Composition

Na2SrZrSi6O17(OH)3·3H2O
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Weloganite and Andalusite Chemical Formula

While comparing Weloganite 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 Weloganite and Andalusite chemical formula.

  • Chemical formula of Weloganite- Na2SrZrSi6O17(OH)3·3H2O
  • Chemical formula of Andalusite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Weloganite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Weloganite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Weloganite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Weloganite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.