Dravite and Rubellite Tourmaline Physical Properties

Dravite

Rubellite Tourmaline

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.03-3.18

Uneven, Irregular, Conchoidal

{???} Indistinct

7-7.5

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

-9999

None

2.5-3

Dravite and Rubellite Tourmaline Chemical Formula

While comparing Dravite and Rubellite Tourmaline 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 Dravite and Rubellite Tourmaline chemical formula.

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Dravite and Rubellite Tourmaline Specific Gravity

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