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Tourmaline
Tourmaline

Jet
Jet



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Tourmaline
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Jet

Tourmaline and Jet Physical Properties

Jet
Jet
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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.85-3.35
1.19-1.35
1.5 Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
1.6 Cleavage
Indistinct
Not Available
1.7 Mohs Hardness
7-7.5
2.5-4
1.8 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 Jet Chemical Formula

While comparing Tourmaline and Jet 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 Jet 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 Jet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tourmaline and Jet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Jet Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 1.19-1.35 whereas that of Jet is 1.19-1.35.