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Watermelon Tourmaline
Watermelon Tourmaline

Hackmanite
Hackmanite



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Watermelon Tourmaline
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Hackmanite

Watermelon Tourmaline and Hackmanite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.90-3.402.27-2.33
1 7.18
👆🏻

Fracture

Uneven, Conchoidal, Irregular
-

Cleavage

Indiscernible
Perfect

Mohs Hardness

7-7.55.5-6
2 10
👆🏻

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.
Na 8Al 6Si 6O 24Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Watermelon Tourmaline and Hackmanite Chemical Formula

While comparing Watermelon Tourmaline and Hackmanite 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 Hackmanite 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 Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Watermelon Tourmaline and Hackmanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Watermelon Tourmaline and Hackmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Watermelon Tourmaline and Hackmanite Optical Properties during the identification of gemstone. Specific gravity of Watermelon Tourmaline is 2.27-2.33 whereas that of Hackmanite is 2.27-2.33.