Zoisite and Watermelon Tourmaline Physical Properties

Zoisite

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

3.20-3.502.90-3.40

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even

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

1.6 Cleavage

Perfect {010} imperfect {100}

Not Available

1.7 Mohs Hardness

6-77-7.5

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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.

Zoisite and Watermelon Tourmaline Chemical Formula

While comparing Zoisite 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 Zoisite and Watermelon Tourmaline chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
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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Zoisite and Watermelon Tourmaline Specific Gravity

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