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Wernerite
Wernerite

Andalusite
Andalusite



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Wernerite
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Wernerite and Andalusite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.50-2.80
3.05-3.21
1.5 Fracture
Not Available
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
1.6 Cleavage
Not Available
Good on {110}, poor on {100}
1.7 Mohs Hardness
5-6.5
7.5
1.8 Chemical Composition
Na 4(Al,Si) 12O 24Cl to Ca 4(Si,Al) 12O 24(CO 3,SO 4)Arthur Thomas , Gemstones (2009)
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Wernerite and Andalusite Chemical Formula

While comparing Wernerite 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 Wernerite and Andalusite chemical formula.

  • Chemical formula of Wernerite- Na 4(Al,Si) 12O 24Cl to Ca 4(Si,Al) 12O 24(CO 3,SO 4)Arthur Thomas , Gemstones (2009)
  • Chemical formula of Andalusite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Wernerite and Andalusite Specific Gravity

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

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