Thomsonite and Andalusite Physical Properties

Thomsonite

Andalusite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.25-2.40

perfect on {010}; good on {100}

5-5.5

NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Thomsonite and Andalusite Chemical Formula

While comparing Thomsonite 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 Thomsonite and Andalusite chemical formula.

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Thomsonite and Andalusite Specific Gravity

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