Kyanite and Cobaltite Physical Properties

Kyanite

Cobaltite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.53-3.656.3

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

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

1.6 Cleavage

[100] perfect [010] imperfect with 79° angle between

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

1.7 Mohs Hardness

4-75.5

2 10

1.8 Chemical Composition

Not Available

CoAsSAnthony et al , Handbook of mineralogy (2001)

Kyanite and Cobaltite Chemical Formula

While comparing Kyanite and Cobaltite 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 Kyanite and Cobaltite chemical formula.

Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

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Kyanite and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 6.3 whereas that of Cobaltite is 6.3.