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Tanzanite
Tanzanite

Witherite
Witherite



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Tanzanite and Witherite 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
4.27-4.35
1.5 Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
Perfect {010}, imperfect {100}
{010} Distinct
1.7 Mohs Hardness
6.5-7
3-3.5
1.8 Chemical Composition
Ca2Al3(SiO4)3(OH)
BaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Tanzanite and Witherite Chemical Formula

While comparing Tanzanite and Witherite 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 Witherite chemical formula.

  • Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
  • Chemical formula of Witherite- BaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Tanzanite and Witherite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Witherite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Witherite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 4.27-4.35 whereas that of Witherite is 4.27-4.35.