Andalusite and Phosgenite Physical Properties

Andalusite

Phosgenite

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Physical Properties

Tenacity

Sectile

Solubility

Soluble

Durability

Specific Gravity

3.05-3.216.13

1 7.18

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Fracture

Uneven, Subconchoidal, Splintery

Conchoidal

Cleavage

Good on {110}, poor on {100}

Distinct on {001} and {110}, indistinct on {100}

Mohs Hardness

7.52-3

2 10

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Chemical Composition

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

Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Andalusite and Phosgenite Chemical Formula

While comparing Andalusite and Phosgenite 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 Phosgenite chemical formula.

Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Phosgenite- Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Brown Gemstones

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Andalusite Vs Aragonite

Andalusite and Phosgenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Phosgenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Phosgenite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 6.13 whereas that of Phosgenite is 6.13.