Biotite and Chlorapatite Physical Properties

Biotite

Chlorapatite

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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

2.7-3.33.17-3.18

1 7.18

1.5 Fracture

Uneven, Even, Yellow, White

Not Available

1.6 Cleavage

Perfect on the {001}

Not Available

1.7 Mohs Hardness

2.5-3.0Not Available

2 10

1.8 Chemical Composition

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

Ca 5(PO 4) 3ClAnthony et al , Handbook of mineralogy (2001)

Biotite and Chlorapatite Chemical Formula

While comparing Biotite and Chlorapatite 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 Chlorapatite chemical formula.

Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
Chemical formula of Chlorapatite- Ca 5(PO 4) 3ClAnthony et al , Handbook of mineralogy (2001)

Compare Yellow Gemstones

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Biotite and Chlorapatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Chlorapatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Chlorapatite Optical Properties during the identification of gemstone. Specific gravity of Biotite is 3.17-3.18 whereas that of Chlorapatite is 3.17-3.18.