Hurlbutite and Pyromorphite Physical Properties

Hurlbutite

Pyromorphite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.2 Specific Gravity

2.906.5-7.1

1 7.18

1.5 Fracture

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

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

1.6 Cleavage

None

Imperfect- [10 1 1]

1.7 Mohs Hardness

63.5-4

2 10

1.10 Chemical Composition

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

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

Hurlbutite and Pyromorphite Chemical Formula

While comparing Hurlbutite and Pyromorphite 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 Hurlbutite and Pyromorphite chemical formula.

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

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Hurlbutite and Pyromorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hurlbutite and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hurlbutite and Pyromorphite Optical Properties during the identification of gemstone. Specific gravity of Hurlbutite is 6.5-7.1 whereas that of Pyromorphite is 6.5-7.1.