Cobaltite and Verdelite Physical Properties

Cobaltite

Verdelite

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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

6.32.90-3.40

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

5.57-7.5

2 10

1.8 Chemical Composition

CoAsSAnthony et al , Handbook of mineralogy (2001)

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Cobaltite and Verdelite Chemical Formula

While comparing Cobaltite and Verdelite 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 Verdelite chemical formula.

Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Verdelite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

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Cobaltite and Verdelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cobaltite and Verdelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cobaltite and Verdelite Optical Properties during the identification of gemstone. Specific gravity of Cobaltite is 2.90-3.40 whereas that of Verdelite is 2.90-3.40.