Tourmaline and Nepouite Physical Properties
Tenacity
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Solubility
Not Available
Not Available
Durability
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Specific Gravity
2.85-3.35
3.18-3.24
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Not Available
Cleavage
Indistinct
perfect on {001}
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
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Tourmaline and Nepouite Chemical Formula
While comparing Tourmaline and Nepouite 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 Tourmaline and Nepouite chemical formula.
- Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
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Tourmaline and Nepouite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tourmaline and Nepouite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Nepouite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 3.18-3.24 whereas that of Nepouite is 3.18-3.24.