Fibrolite and Andalusite Physical Properties

Fibrolite

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

3.14-3.25

3.05-3.21

1.5 Fracture

Gemstones (2009), UnevenArthur 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

6-7

7.5

1.8 Chemical Composition

Al 2SiO 5Arthur Thomas , Gemstones (2009)

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

Fibrolite and Andalusite Chemical Formula

While comparing Fibrolite 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 Fibrolite and Andalusite chemical formula.

Chemical formula of Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Fibrolite and Andalusite Specific Gravity

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