Spodumene and Watermelon Tourmaline Physical Properties

Spodumene

Watermelon Tourmaline

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.21

2.90-3.40

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

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

1.6 Cleavage

Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°

Not Available

1.7 Mohs Hardness

6-7

7-7.5

1.8 Chemical Composition

LiAlSi₂O₆

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.

Spodumene and Watermelon Tourmaline Chemical Formula

While comparing Spodumene 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 Spodumene and Watermelon Tourmaline chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
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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Spodumene and Watermelon Tourmaline Specific Gravity

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