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Vivianite
Vivianite

Tanzanite
Tanzanite



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Vivianite
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Tanzanite

Vivianite and Tanzanite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Hard
1.4 Specific Gravity
2.64-2.70
3.35
1.5 Fracture
(e.g. graphite).
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
{010} Perfect
Perfect {010}, imperfect {100}
1.7 Mohs Hardness
Not Available
6.5-7
1.8 Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Ca2Al3(SiO4)3(OH)

Vivianite and Tanzanite Chemical Formula

While comparing Vivianite 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 Vivianite and Tanzanite chemical formula.

  • Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
  • Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)

Vivianite and Tanzanite Specific Gravity

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