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Biotite and Ruby Physical Properties


Ruby and Biotite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.7-3.3   
3.97-4.05   

Fracture
Uneven, Even, Yellow, White   
Conchoidal   

Cleavage
Perfect on the {001}   
No true cleavage   

Mohs Hardness
2.5-3.0   
9   

Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2   
Al 2 O 3   

Optical Properties >>
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Biotite and Ruby Chemical Formula

While comparing Biotite and Ruby 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 Ruby chemical formula.

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Biotite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Biotite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.

Yellow Gemstones

Yellow Gemstones


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