Watermelon Tourmaline and Willemite Physical Properties

Watermelon Tourmaline

Willemite

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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

2.90-3.403.89-4.18

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

Not Available

{0001}, {11 2 0} imperfect

1.7 Mohs Hardness

7-7.55.5

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.

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

Watermelon Tourmaline and Willemite Chemical Formula

While comparing Watermelon Tourmaline and Willemite 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 Willemite 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 Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Watermelon Tourmaline and Willemite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Watermelon Tourmaline and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Watermelon Tourmaline and Willemite Optical Properties during the identification of gemstone. Specific gravity of Watermelon Tourmaline is 3.89-4.18 whereas that of Willemite is 3.89-4.18.