Sardonyx and Pyromorphite Physical Properties

Sardonyx

Pyromorphite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.706.5-7.1

1 7.18

1.5 Fracture

Not Available

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

1.6 Cleavage

Not Available

Imperfect- [10 1 1]

1.7 Mohs Hardness

6.5-73.5-4

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Sardonyx and Pyromorphite Chemical Formula

While comparing Sardonyx 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 Sardonyx and Pyromorphite chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

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Sardonyx and Pyromorphite Specific Gravity

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