Violane and Andalusite Physical Properties

Violane

Andalusite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.22-3.403.05-3.21

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Not Available

Good on {110}, poor on {100}

1.7 Mohs Hardness

5-67.5

2 10

1.8 Chemical Composition

(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)

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

Violane and Andalusite Chemical Formula

While comparing Violane 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 Violane and Andalusite chemical formula.

Chemical formula of Violane- (Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Violane and Andalusite Specific Gravity

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