Galena and Cobaltite Physical Properties

Galena

Cobaltite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.236.3

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

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

Cubic perfect on [001], parting on [111]

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

1.7 Mohs Hardness

2.5-2.755.5

2 10

1.8 Chemical Composition

PbS

CoAsSAnthony et al , Handbook of mineralogy (2001)

Galena and Cobaltite Chemical Formula

While comparing Galena 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 Galena and Cobaltite chemical formula.

Chemical formula of Galena- PbS
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

Compare Grey Gemstones

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Galena and Cobaltite Specific Gravity

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