Vivianite and Zoisite Physical Properties

Vivianite

Zoisite

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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

2.64-2.703.20-3.50

1 7.18

1.5 Fracture

(e.g. graphite).

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even

1.6 Cleavage

{010} Perfect

Perfect {010} imperfect {100}

1.7 Mohs Hardness

Not Available6-7

2 10

1.8 Chemical Composition

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

Ca₂Al₃(SiO₄)₃(OH)

Vivianite and Zoisite Chemical Formula

While comparing Vivianite and Zoisite 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 Zoisite chemical formula.

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

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Vivianite and Zoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Zoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Zoisite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 3.20-3.50 whereas that of Zoisite is 3.20-3.50.