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Watermelon Tourmaline
Watermelon Tourmaline

Biotite
Biotite



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Watermelon Tourmaline
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Biotite

Watermelon Tourmaline and Biotite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.90-3.40
Uneven, Conchoidal, Irregular
Indiscernible
7-7.5
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
 
Brittle
-
-
2.7-3.3
Uneven, Even
Perfect on the {001}
2.5-3.0
K(Mg,Fe++)3[AlSi3O10(OH,F)2

Watermelon Tourmaline and Biotite Chemical Formula

While comparing Watermelon Tourmaline 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 Watermelon Tourmaline and Biotite chemical formula.

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Watermelon Tourmaline and Biotite Specific Gravity

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