Sinhalite and Cobaltite Physical Properties

Sinhalite

Cobaltite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.46-3.506.3

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

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

Not Available

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

1.7 Mohs Hardness

6-75.5

2 10

1.8 Chemical Composition

MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CoAsSAnthony et al , Handbook of mineralogy (2001)

Sinhalite and Cobaltite Chemical Formula

While comparing Sinhalite 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 Sinhalite and Cobaltite chemical formula.

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

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Sinhalite and Cobaltite Specific Gravity

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