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Tanzanite
Tanzanite

Tourmaline
Tourmaline



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Tanzanite
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Tanzanite and Tourmaline Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Hard
Not Available
1.4 Specific Gravity
3.35
2.85-3.35
1.5 Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Perfect {010}, imperfect {100}
Indistinct
1.7 Mohs Hardness
6.5-7
7-7.5
1.8 Chemical Composition
Ca2Al3(SiO4)3(OH)
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

Tanzanite and Tourmaline Chemical Formula

While comparing Tanzanite and 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 Tanzanite and Tourmaline chemical formula.

  • Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
  • Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

Tanzanite and Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.