Riebeckite and Erythrite Physical Properties

Riebeckite

Erythrite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.28-3.443.06

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

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

1.6 Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

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

1.7 Mohs Hardness

5.0-6.0Not Available

2 10

1.8 Chemical Composition

Not Available

Co3(AsO4)2•8(H2O)

Riebeckite and Erythrite Chemical Formula

While comparing Riebeckite 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 Riebeckite and Erythrite chemical formula.

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

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Riebeckite and Erythrite Specific Gravity

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