Vesuvianite and Andalusite Physical Properties

Vesuvianite

Andalusite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Vesuvianite is virtually insolouble in acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.32-3.433.05-3.21

1 7.18

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

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

Good on {110}, poor on {100}

1.7 Mohs Hardness

6-77.5

2 10

1.8 Chemical Composition

Not Available

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

Vesuvianite and Andalusite Chemical Formula

While comparing Vesuvianite 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 Vesuvianite and Andalusite chemical formula.

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

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Vesuvianite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vesuvianite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vesuvianite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Vesuvianite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.