Cobaltite and Sapphire Physical Properties

Cobaltite

Sapphire

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

6.33.95-4.03

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

None, but may exhibit parting

1.7 Mohs Hardness

5.59

2 10

1.8 Chemical Composition

CoAsSAnthony et al , Handbook of mineralogy (2001)

Al ₂ O ₃

Cobaltite and Sapphire Chemical Formula

While comparing Cobaltite and Sapphire 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 Sapphire chemical formula.

Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Sapphire- Al ₂ O ₃

Compare Gems Found in America

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Cobaltite Vs Diopside

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Cobaltite and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cobaltite and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cobaltite and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Cobaltite is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.