Erythrite and Plumbogummite Physical Properties

Erythrite

Plumbogummite

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1 Physical Properties

1.1 Tenacity

Sectile

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.064.014

1 7.18

1.5 Fracture

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

Uneven, Conchoidal

1.6 Cleavage

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

None

1.7 Mohs Hardness

Not Available4-5

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

Not Available

Erythrite and Plumbogummite Chemical Formula

While comparing Erythrite and Plumbogummite 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 Plumbogummite chemical formula.

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

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Erythrite and Plumbogummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Plumbogummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Plumbogummite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 4.014 whereas that of Plumbogummite is 4.014.