Pyromorphite and Hurlbutite Physical Properties

Pyromorphite

Hurlbutite

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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

6.5-7.12.90

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Imperfect- [10 1 1]

None

1.7 Mohs Hardness

3.5-46

2 10

1.8 Chemical Composition

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

CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Pyromorphite and Hurlbutite Chemical Formula

While comparing Pyromorphite and Hurlbutite 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 Hurlbutite chemical formula.

Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

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Pyromorphite Vs Rutilated Quartz

Pyromorphite Vs Sapphire

Pyromorphite and Hurlbutite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Hurlbutite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.90 whereas that of Hurlbutite is 2.90.