Charlesite and Watermelon Tourmaline Physical Properties

Charlesite

Watermelon Tourmaline

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.792.90-3.40

1 7.18

1.5 Fracture

Irregular/uneven, Brittle, Metallic

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

1.6 Cleavage

Perfect on {10bar10}

Not Available

1.7 Mohs Hardness

2.57-7.5

2 10

1.8 Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

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.

Charlesite and Watermelon Tourmaline Chemical Formula

While comparing Charlesite 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 Charlesite and Watermelon Tourmaline chemical formula.

Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
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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Charlesite and Watermelon Tourmaline Specific Gravity

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