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Biotite
Biotite

Spodumene
Spodumene



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Biotite
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Spodumene

Biotite and Spodumene Physical Properties

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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
 
Brittle
insoluble
-
3.15-3.21
Uneven, Subconchoidal
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
6-7
LiAlSi2O6

Biotite and Spodumene Chemical Formula

While comparing Biotite and Spodumene 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 Spodumene chemical formula.

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Biotite and Spodumene Specific Gravity

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