Cobaltite and Erythrite Physical Properties

Cobaltite

Erythrite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.33.06

1 7.18

1.5 Fracture

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

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

1.6 Cleavage

{100} Good, {010} Good, {001} Good

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

1.7 Mohs Hardness

5.5Not Available

2 10

1.8 Chemical Composition

CoAsSAnthony et al , Handbook of mineralogy (2001)

Co3(AsO4)2•8(H2O)

Cobaltite and Erythrite Chemical Formula

While comparing Cobaltite 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 Cobaltite and Erythrite chemical formula.

Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

Compare Gems Found in America

Cobaltite Vs Diopside

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Cobaltite Vs Diamond

Cobaltite and Erythrite Specific Gravity

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