Watermelon Tourmaline and Lepidolite Physical Properties

Watermelon Tourmaline

Lepidolite

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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

2.90-3.402.80-2.90

1 7.18

1.5 Fracture

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

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

{001} perfect

1.7 Mohs Hardness

7-7.52.5

2 10

1.8 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.

Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.

Watermelon Tourmaline and Lepidolite Chemical Formula

While comparing Watermelon Tourmaline and Lepidolite 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 Lepidolite 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 Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.

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Watermelon Tourmaline and Lepidolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Watermelon Tourmaline and Lepidolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Watermelon Tourmaline and Lepidolite Optical Properties during the identification of gemstone. Specific gravity of Watermelon Tourmaline is 2.80-2.90 whereas that of Lepidolite is 2.80-2.90.