Pyromorphite and Hematite Physical Properties

Pyromorphite

Hematite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.5-7.15.00-5.30

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

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

1.6 Cleavage

Imperfect- [10 1 1]

None, may show partings on {0001} and {10 1 1}

1.7 Mohs Hardness

3.5-46

2 10

1.8 Chemical Composition

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

Fe 2O 3Arthur Thomas , Gemstones (2009)

Pyromorphite and Hematite Chemical Formula

While comparing Pyromorphite and Hematite 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 Hematite chemical formula.

Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

Compare Green Gemstones

Pyromorphite Vs Sapphirine

Pyromorphite Vs Sapphire

Pyromorphite Vs Rutilated Quartz

Pyromorphite and Hematite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Hematite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Hematite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 5.00-5.30 whereas that of Hematite is 5.00-5.30.