Beryllonite and Watermelon Tourmaline Physical Properties

Beryllonite

Watermelon Tourmaline

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

2.79-2.87

Conchoidal

{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces

5.5-6

NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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.

Beryllonite and Watermelon Tourmaline Chemical Formula

While comparing Beryllonite and Watermelon 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 Beryllonite and Watermelon Tourmaline chemical formula.

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Beryllonite and Watermelon Tourmaline Specific Gravity

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