Andalusite and Vesuvianite Physical Properties

Andalusite

Vesuvianite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Vesuvianite is virtually insolouble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.05-3.213.32-3.43

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

Conchoidal, Brittle

1.6 Cleavage

Good on {110}, poor on {100}

Poor on {110} and {100} very poor on {001}

1.7 Mohs Hardness

7.56-7

2 10

1.8 Chemical Composition

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

Not Available

Andalusite and Vesuvianite Chemical Formula

While comparing Andalusite and Vesuvianite 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 Vesuvianite chemical formula.

Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Andalusite and Vesuvianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Vesuvianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Vesuvianite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 3.32-3.43 whereas that of Vesuvianite is 3.32-3.43.