Microlite and Andalusite Physical Properties

Microlite

Andalusite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

5.53.05-3.21

1 7.18

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Fracture

Conchoidal

Uneven, Subconchoidal, Splintery

Cleavage

{111} Indistinct, {111} Indistinct, {111} Indistinct

Good on {110}, poor on {100}

Mohs Hardness

5-5.57.5

2 10

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Chemical Composition

(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Microlite and Andalusite Chemical Formula

While comparing Microlite 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 Microlite and Andalusite chemical formula.

Chemical formula of Microlite- (Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Microlite and Andalusite Specific Gravity

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