Nosean and Andalusite Physical Properties

Nosean

Andalusite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.30-2.40

Uneven, Conchoidal

{110} Perfect

-9999

Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)

3.05-3.21

Uneven, Subconchoidal, Splintery

Good on {110}, poor on {100}

7.5

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Nosean and Andalusite Chemical Formula

While comparing Nosean 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 Nosean and Andalusite chemical formula.

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Nosean and Andalusite Specific Gravity

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