Erythrite and Coral Physical Properties

Erythrite

Coral

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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

3.062.60-2.70

1 7.18

1.5 Fracture

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

Irregular, Irregular, Gemstones of the world (2001)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

Not Available3-4

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

CaCO 3Ulrich Henn and Claudio C.

Erythrite and Coral Chemical Formula

While comparing Erythrite and Coral 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 Coral chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.

Compare Red Gemstones

Erythrite Vs Stolzite

Erythrite Vs Richterite

Erythrite Vs Polyhalite

Erythrite and Coral Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Coral Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Coral Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.60-2.70 whereas that of Coral is 2.60-2.70.