Bytownite and Watermelon Tourmaline Physical Properties

Bytownite

Watermelon Tourmaline

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.72-2.752.90-3.40

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

Perfect on [001], good on [010], imperfect on [110]

Not Available

1.7 Mohs Hardness

6-6.57-7.5

2 10

1.8 Chemical Composition

Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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.

Bytownite and Watermelon Tourmaline Chemical Formula

While comparing Bytownite 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 Bytownite and Watermelon Tourmaline chemical formula.

Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
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.

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Bytownite and Watermelon Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bytownite and Watermelon Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bytownite and Watermelon Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Bytownite is 2.90-3.40 whereas that of Watermelon Tourmaline is 2.90-3.40.