Watermelon Tourmaline and Williamsite Physical Properties

Watermelon Tourmaline

Williamsite

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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

2.90-3.402.51-2.63

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Handbook of mineralogy (2001)

1.6 Cleavage

Not Available

1.7 Mohs Hardness

7-7.54

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.

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Watermelon Tourmaline and Williamsite Chemical Formula

While comparing Watermelon Tourmaline and Williamsite 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 Williamsite 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 Williamsite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

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Watermelon Tourmaline and Williamsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Watermelon Tourmaline and Williamsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Watermelon Tourmaline and Williamsite Optical Properties during the identification of gemstone. Specific gravity of Watermelon Tourmaline is 2.51-2.63 whereas that of Williamsite is 2.51-2.63.