Biotite and Nosean Physical Properties

Biotite

Nosean

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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

2.7-3.32.30-2.40

1 7.18

1.8 Fracture

Uneven, Even, Yellow, White

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.9 Cleavage

Perfect on the {001}

{110} Perfect

1.10 Mohs Hardness

2.5-3.0Not Available

2 10

1.12 Chemical Composition

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

Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)

Biotite and Nosean Chemical Formula

While comparing Biotite and Nosean 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 Nosean chemical formula.

Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)

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Biotite and Nosean Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Nosean Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Nosean Optical Properties during the identification of gemstone. Specific gravity of Biotite is 2.30-2.40 whereas that of Nosean is 2.30-2.40.