Andalusite and Fuchsite Physical Properties

Andalusite

Fuchsite

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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

3.05-3.21

2.77-2.88

1.5 Fracture

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

Uneven

1.6 Cleavage

Good on {110}, poor on {100}

Perfect basal

1.7 Mohs Hardness

7.5

2.5

1.8 Chemical Composition

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

K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

Andalusite and Fuchsite Chemical Formula

While comparing Andalusite and Fuchsite 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 Fuchsite chemical formula.

Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

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Andalusite and Fuchsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Fuchsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Fuchsite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 2.77-2.88 whereas that of Fuchsite is 2.77-2.88.