Boulder Opal and Watermelon Tourmaline Physical Properties

Boulder Opal

Watermelon Tourmaline

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

1.98-2.25

Conchoidal

None

5-6.5

SiO 2 + H 2OUlrich Henn and Claudio C.

2.90-3.40

Uneven, Conchoidal, Irregular

Indiscernible

7-7.5

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.

Boulder Opal and Watermelon Tourmaline Chemical Formula

While comparing Boulder Opal 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 Boulder Opal and Watermelon Tourmaline chemical formula.

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Boulder Opal and Watermelon Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Watermelon Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal Vs Watermelon Tourmaline during the identification of gemstone. Specific gravity of Boulder Opal is whereas that of Watermelon Tourmaline is .