Microlite and Biotite Physical Properties

Microlite

Biotite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

5.52.7-3.3

1 7.18

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Fracture

Conchoidal

Uneven, Even

Cleavage

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

Perfect on the {001}

Mohs Hardness

5-5.52.5-3.0

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

K(Mg,Fe++)3[AlSi3O10(OH,F)2

Microlite and Biotite Chemical Formula

While comparing Microlite and Biotite 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 Biotite 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 Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2

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Microlite and Biotite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Microlite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Microlite and Biotite Optical Properties during the identification of gemstone. Specific gravity of Microlite is 2.7-3.3 whereas that of Biotite is 2.7-3.3.