Brazilianite and Watermelon Tourmaline Physical Properties

Brazilianite

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

2.98-2.992.90-3.40

1 7.18

1.5 Fracture

Conchoidal, Gems

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

1.6 Cleavage

(010) Distinct to good

Not Available

1.7 Mohs Hardness

5.57-7.5

2 10

1.8 Chemical Composition

NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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.

Brazilianite and Watermelon Tourmaline Chemical Formula

While comparing Brazilianite 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 Brazilianite and Watermelon Tourmaline chemical formula.

Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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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Brazilianite and Watermelon Tourmaline Specific Gravity

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