Lazulite and Cobaltite Physical Properties

Lazulite

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

3.04-3.176.3

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones of the world (2001) More from other references

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

{001} Indistinct, {???} Indistinct

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

1.7 Mohs Hardness

5.55.5

2 10

1.8 Chemical Composition

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

CoAsSAnthony et al , Handbook of mineralogy (2001)

Lazulite and Cobaltite Chemical Formula

While comparing Lazulite 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 Lazulite and Cobaltite chemical formula.

Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

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Lazulite and Cobaltite Specific Gravity

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