Andalusite and Boleite Physical Properties

Andalusite

Boleite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.05-3.215.05

1 7.18

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Fracture

Uneven, Subconchoidal, Splintery

Uneven

Cleavage

Good on {110}, poor on {100}

[001] perfect

Mohs Hardness

7.53-3.5

2 10

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Chemical Composition

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

Pb 26Ag 10Cu 24Cl 62(OH) 48 · 3H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Andalusite and Boleite Chemical Formula

While comparing Andalusite and Boleite 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 Boleite chemical formula.

Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Boleite- Pb 26Ag 10Cu 24Cl 62(OH) 48 · 3H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Compare Brown Gemstones

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Andalusite and Boleite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Boleite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Boleite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 5.05 whereas that of Boleite is 5.05.