Variscite and Cobaltite Physical Properties

Variscite

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

2.42-2.586.3

1 7.18

1.5 Fracture

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

[010] perfect

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

1.7 Mohs Hardness

4-55.5

2 10

1.8 Chemical Composition

AlPO₄ · 2(H₂O)

CoAsSAnthony et al , Handbook of mineralogy (2001)

Variscite and Cobaltite Chemical Formula

While comparing Variscite 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 Variscite and Cobaltite chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

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Variscite and Cobaltite Specific Gravity

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