Cobaltite and Petalite Physical Properties

Cobaltite

Petalite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

6.32.40

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

Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

1.6 Cleavage

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

Perfect on {001}, poor on {201} with 38.5° angle between the two

1.7 Mohs Hardness

5.56-6.5

2 10

1.8 Chemical Composition

CoAsSAnthony et al , Handbook of mineralogy (2001)

LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cobaltite and Petalite Chemical Formula

While comparing Cobaltite and Petalite 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 Petalite chemical formula.

Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems Found in America

Cobaltite Vs Datolite

Cobaltite Vs Diamond

Cobaltite Vs Diopside

Cobaltite and Petalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cobaltite and Petalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cobaltite and Petalite Optical Properties during the identification of gemstone. Specific gravity of Cobaltite is 2.40 whereas that of Petalite is 2.40.