Andalusite and Linarite Physical Properties

Andalusite

Linarite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.05-3.215.35

1 7.18

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Fracture

Uneven, Subconchoidal, Splintery

Conchoidal

Cleavage

Good on {110}, poor on {100}

Perfect on {100}, imperfect on {001}

Mohs Hardness

7.52.5

2 10

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Chemical Composition

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

PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Andalusite and Linarite Chemical Formula

While comparing Andalusite and Linarite 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 Andalusite and Linarite chemical formula.

Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Linarite- PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Andalusite and Linarite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Linarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Linarite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 5.35 whereas that of Linarite is 5.35.