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Poudretteite
Poudretteite

Tanzanite
Tanzanite



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Poudretteite
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Poudretteite and Tanzanite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Hard
1.4 Specific Gravity
2.51-2.53
3.35
1.5 Fracture
Conchoidal, Splintery
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
None
Perfect {010}, imperfect {100}
1.7 Mohs Hardness
5
6.5-7
1.8 Chemical Composition
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)
Ca2Al3(SiO4)3(OH)

Poudretteite and Tanzanite Chemical Formula

While comparing Poudretteite and Tanzanite 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 Poudretteite and Tanzanite chemical formula.

  • Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)

Poudretteite and Tanzanite Specific Gravity

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