Tigers Eye and Biotite Physical Properties

Tigers Eye

Biotite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.642.7-3.3

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006)

Uneven, Even, Yellow, White

1.6 Cleavage

Indiscernible

Perfect on the {001}

1.7 Mohs Hardness

6.5-72.5-3.0

2 10

1.8 Chemical Composition

SiO₂

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

Tigers Eye and Biotite Chemical Formula

While comparing Tigers Eye 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 Tigers Eye and Biotite chemical formula.

Chemical formula of Tigers Eye- SiO₂
Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2

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Tigers Eye and Biotite Specific Gravity

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