Plumbogummite and Erythrite Physical Properties

Plumbogummite

Erythrite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.0143.06

1 7.18

1.5 Fracture

Uneven, Conchoidal

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

1.6 Cleavage

None

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

1.7 Mohs Hardness

4-5Not Available

2 10

1.8 Chemical Composition

Not Available

Co3(AsO4)2•8(H2O)

Plumbogummite and Erythrite Chemical Formula

While comparing Plumbogummite and Erythrite 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 Plumbogummite and Erythrite chemical formula.

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

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Plumbogummite and Erythrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Plumbogummite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Plumbogummite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Plumbogummite is 3.06 whereas that of Erythrite is 3.06.