Erythrite and Verdite Physical Properties

Erythrite

Verdite

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.062.80-3.0

1 7.18

1.5 Fracture

Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).

Not Available

1.6 Cleavage

Perfect on {010}; poor on {100} and { 1 02}.

{110} Good

1.7 Mohs Hardness

Not Available3

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

NaFeS2•2(H2O)

Erythrite and Verdite Chemical Formula

While comparing Erythrite and Verdite 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 Erythrite and Verdite chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Verdite- NaFeS2•2(H2O)

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Erythrite and Verdite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Verdite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Verdite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.80-3.0 whereas that of Verdite is 2.80-3.0.