Verdelite and Tourmaline Physical Properties

Verdelite

Tourmaline

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.90-3.40

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.

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.

Verdelite and Tourmaline Chemical Formula

While comparing Verdelite and 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 Verdelite and Tourmaline chemical formula.

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Verdelite and Tourmaline Specific Gravity

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