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Vivianite
Vivianite

Witherite
Witherite



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Vivianite
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Witherite

Vivianite and Witherite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.64-2.704.27-4.35
Amber
1 7.18
1.5 Fracture
(e.g. graphite).
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
{010} Perfect
{010} Distinct
1.7 Mohs Hardness
Not Available3-3.5
Amber
2 10
1.8 Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
BaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Vivianite and Witherite Chemical Formula

While comparing Vivianite 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 Vivianite and Witherite chemical formula.

  • Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
  • Chemical formula of Witherite- BaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Vivianite and Witherite Specific Gravity

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