Zinnwaldite and Vivianite Physical Properties

Zinnwaldite

Vivianite

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1 Physical Properties

1.1 Tenacity

Elastic

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.12.64-2.70

1 7.18

1.5 Fracture

Uneven

(e.g. graphite).

1.6 Cleavage

Perfect basal {001}

{010} Perfect

1.7 Mohs Hardness

3.5-4.0Not Available

2 10

1.8 Chemical Composition

Not Available

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

Zinnwaldite and Vivianite Chemical Formula

While comparing Zinnwaldite 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 Zinnwaldite and Vivianite chemical formula.

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

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Zinnwaldite and Vivianite Specific Gravity

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