Iddingsite and Vivianite Physical Properties

Iddingsite

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

2.5-2.82.64-2.70

1 7.18

1.5 Fracture

Not Available

(e.g. graphite).

1.6 Cleavage

{???} Perfect

{010} Perfect

1.7 Mohs Hardness

3Not Available

2 10

1.8 Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

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

Iddingsite and Vivianite Chemical Formula

While comparing Iddingsite 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 Iddingsite and Vivianite chemical formula.

Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

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Iddingsite and Vivianite Specific Gravity

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