Pyromorphite and Chrysoprase Physical Properties

Pyromorphite

Chrysoprase

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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

6.5-7.12.58-2.64

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

Gems, Sixth Edition (2006)

1.6 Cleavage

Imperfect- [10 1 1]

None

1.7 Mohs Hardness

3.5-46.5-7

2 10

1.8 Chemical Composition

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

SiO₂ (with a high level of nickel impurities )

Pyromorphite and Chrysoprase Chemical Formula

While comparing Pyromorphite and Chrysoprase 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 Chrysoprase chemical formula.

Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )

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Pyromorphite and Chrysoprase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Chrysoprase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Chrysoprase Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.58-2.64 whereas that of Chrysoprase is 2.58-2.64.