Taaffeite and Andalusite Physical Properties

Taaffeite

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

3.60-3.613.05-3.21

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Imperfect/fair/absent

Good on {110}, poor on {100}

1.7 Mohs Hardness

8-8.57.5

2 10

1.8 Chemical Composition

Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

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

Taaffeite and Andalusite Chemical Formula

While comparing Taaffeite 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 Taaffeite and Andalusite chemical formula.

Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Compare Colorless Gems

Taaffeite Vs Blue quartz

Taaffeite Vs Kashmir sapphire

Taaffeite Vs Swiss blue topaz

Taaffeite and Andalusite Specific Gravity

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