Tourmaline and Pyromorphite Physical Properties

Tourmaline

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

2.85-3.356.5-7.1

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

1.6 Cleavage

Indistinct

Imperfect- [10 1 1]

1.7 Mohs Hardness

7-7.53.5-4

2 10

1.8 Chemical Composition

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

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

Tourmaline and Pyromorphite Chemical Formula

While comparing Tourmaline 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 Tourmaline and Pyromorphite chemical formula.

Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

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Tourmaline and Pyromorphite Specific Gravity

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