Peridot and Watermelon Tourmaline Physical Properties

Peridot

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

1.54-1.552.90-3.40

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Poor

Not Available

1.7 Mohs Hardness

6.5-77-7.5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

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.

Peridot and Watermelon Tourmaline Chemical Formula

While comparing Peridot 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 Peridot and Watermelon Tourmaline chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
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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Peridot and Watermelon Tourmaline Specific Gravity

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