Tourmaline and Rubellite Physical Properties

Tourmaline

Rubellite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.85-3.35

Uneven, Conchoidal

Indistinct

7-7.5

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

3.01-3.06

Conchoidal

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.

Tourmaline and Rubellite Chemical Formula

While comparing Tourmaline and Rubellite 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 Tourmaline and Rubellite chemical formula.

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Tourmaline Vs Watermelon Tourmaline

Tourmaline and Rubellite Specific Gravity

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