Pyromorphite and Cobaltite Physical Properties

Pyromorphite

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

6.5-7.16.3

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, 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

Imperfect- [10 1 1]

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

1.7 Mohs Hardness

3.5-45.5

2 10

1.8 Chemical Composition

Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

CoAsSAnthony et al , Handbook of mineralogy (2001)

Pyromorphite and Cobaltite Chemical Formula

While comparing Pyromorphite 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 Pyromorphite and Cobaltite chemical formula.

Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

Compare Green Gemstones

Pyromorphite Vs Sapphire

Pyromorphite Vs Rutilated Quartz

Pyromorphite Vs Sapphirine

Pyromorphite and Cobaltite Specific Gravity

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