Iolite and Watermelon Tourmaline Physical Properties

Iolite

Watermelon Tourmaline

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.6-2.72.90-3.40

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

3,1

Not Available

1.7 Mohs Hardness

7-7.57-7.5

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

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.

Iolite and Watermelon Tourmaline Chemical Formula

While comparing Iolite 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 Iolite and Watermelon Tourmaline chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
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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Iolite and Watermelon Tourmaline Specific Gravity

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