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Tanzanite
Tanzanite

Norbergite
Norbergite



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Tanzanite
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Norbergite

Tanzanite and Norbergite 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
3.353.177
Amber
1 7.18
1.5 Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
1.6 Cleavage
Perfect {010}, imperfect {100}
{???} Distinct
1.7 Mohs Hardness
6.5-76-6.5
Amber
2 10
1.8 Chemical Composition
Ca2Al3(SiO4)3(OH)
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)

Tanzanite and Norbergite Chemical Formula

While comparing Tanzanite and Norbergite 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 Norbergite chemical formula.

  • Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
  • Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)

Tanzanite and Norbergite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Norbergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Norbergite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 3.177 whereas that of Norbergite is 3.177.