Cobaltite and Tanzanite Physical Properties

Cobaltite

Tanzanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

6.33.35

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

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

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

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

5.56.5-7

2 10

1.8 Chemical Composition

CoAsSAnthony et al , Handbook of mineralogy (2001)

Ca₂Al₃(SiO₄)₃(OH)

Cobaltite and Tanzanite Chemical Formula

While comparing Cobaltite and Tanzanite 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 Tanzanite chemical formula.

Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Cobaltite and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cobaltite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cobaltite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Cobaltite is 3.35 whereas that of Tanzanite is 3.35.