Cobaltite and Grandidierite Physical Properties

Cobaltite

Grandidierite

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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

6.32.85-3.00

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

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

1.6 Cleavage

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

Perfect

1.7 Mohs Hardness

5.57.5

2 10

1.8 Chemical Composition

CoAsSAnthony et al , Handbook of mineralogy (2001)

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Cobaltite and Grandidierite Chemical Formula

While comparing Cobaltite and Grandidierite 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 Grandidierite chemical formula.

Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Compare Gems Found in America

Cobaltite Vs Diopside

Cobaltite Vs Diamond

Cobaltite Vs Datolite

Cobaltite and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cobaltite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cobaltite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Cobaltite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.