Witherite and Vivianite Physical Properties

Witherite

Vivianite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.27-4.35

2.64-2.70

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle

(e.g. graphite).

1.6 Cleavage

{010} Distinct

{010} Perfect

1.7 Mohs Hardness

3-3.5

Not Available

1.8 Chemical Composition

BaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Witherite and Vivianite Chemical Formula

While comparing Witherite and Vivianite 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 Witherite and Vivianite chemical formula.

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

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Witherite and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Witherite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Witherite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Witherite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.