Tourmaline and Nickeline Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
Not Available
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Uneven
Cleavage
Indistinct
{1010} Imperfect, {0001} Imperfect
Mohs Hardness
7-7.5
5-5.5
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Not Available
Tourmaline and Nickeline Chemical Formula
While comparing Tourmaline and Nickeline 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 Nickeline 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 Nickeline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tourmaline and Nickeline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Nickeline Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is Not Available whereas that of Nickeline is Not Available.