Vivianite and Zincite Physical Properties

Vivianite

Zincite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.64-2.705.50-5.90

1 7.18

1.5 Fracture

(e.g. graphite).

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{010} Perfect

On {10 1 0}, perfect; parting on {000 1 }

1.7 Mohs Hardness

Not Available4

2 10

1.8 Chemical Composition

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

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Vivianite and Zincite Chemical Formula

While comparing Vivianite and Zincite 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 Zincite chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Vivianite and Zincite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Zincite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Zincite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 5.50-5.90 whereas that of Zincite is 5.50-5.90.