Watermelon Tourmaline and Phenakite Physical Properties

Watermelon Tourmaline

Phenakite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.402.90-2.98

1 7.18

1.5 Fracture

Uneven, Conchoidal, Uneven, Irregular, Conchoidal, Management Team (2012)

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle

1.6 Cleavage

Not Available

Distinct on {11 2 0}, imperfect on {10 1 1}

1.7 Mohs Hardness

7-7.57.5-8

2 10

1.8 Chemical Composition

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.

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Watermelon Tourmaline and Phenakite Chemical Formula

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

Chemical formula of Watermelon Tourmaline- 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.
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Watermelon Tourmaline and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Watermelon Tourmaline and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Watermelon Tourmaline and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Watermelon Tourmaline is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.