Rosasite and Pyromorphite Physical Properties

Rosasite

Pyromorphite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.26.5-7.1

1 7.18

1.5 Fracture

Splintery

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

1.6 Cleavage

Perfect on {100} and {010}

Imperfect- [10 1 1]

1.7 Mohs Hardness

43.5-4

2 10

1.8 Chemical Composition

Not Available

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

Rosasite and Pyromorphite Chemical Formula

While comparing Rosasite 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 Rosasite and Pyromorphite chemical formula.

Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

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Rosasite and Pyromorphite Specific Gravity

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