Biotite and Bowenite Physical Properties

Biotite

Bowenite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.7-3.3

2.58-2.80

1.5 Fracture

Uneven, Even, Yellow, White

Uneven, Irregular, Management Team (2012)

1.6 Cleavage

Perfect on the {001}

Not Available

1.7 Mohs Hardness

2.5-3.0

5.5

1.8 Chemical Composition

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

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Biotite and Bowenite Chemical Formula

While comparing Biotite and Bowenite 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 Biotite and Bowenite chemical formula.

Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
Chemical formula of Bowenite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

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Biotite and Bowenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Bowenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Bowenite Optical Properties during the identification of gemstone. Specific gravity of Biotite is 2.58-2.80 whereas that of Bowenite is 2.58-2.80.