Rubellite and Dumortierite Physical Properties

Rubellite

Dumortierite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

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.

3.26-3.41

Fibrous, ConchoidalWalter Schumann

Distinct on {100}, poor on {110}; parting on {001}

7-8.5

AlAl₆O₃BSi₃O₁₈

Rubellite and Dumortierite Chemical Formula

While comparing Rubellite and Dumortierite 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 Rubellite and Dumortierite chemical formula.

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Rubellite Vs Shattuckite

Rubellite Vs Sillimanite

Rubellite and Dumortierite Specific Gravity

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