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Norbergite
Norbergite

Andalusite
Andalusite



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Norbergite
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Andalusite

Norbergite and Andalusite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.177
Uneven, Conchoidal
{???} Distinct
6-6.5
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
 
-
-
-
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

Norbergite and Andalusite Chemical Formula

While comparing Norbergite 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 Norbergite and Andalusite chemical formula.

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Norbergite and Andalusite Specific Gravity

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