Biotite and Stichtite Physical Properties

Biotite

Stichtite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

2.7-3.3

Uneven, Even

Perfect on the {001}

2.5-3.0

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

2.11-2.20

Uneven

Perfect on {0001}

-9999

Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Biotite and Stichtite Chemical Formula

While comparing Biotite and Stichtite 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 Stichtite chemical formula.

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Biotite and Stichtite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Stichtite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite Vs Stichtite during the identification of gemstone. Specific gravity of Biotite is whereas that of Stichtite is .