Tourmaline and Wulfenite Physical Properties

Tourmaline

Wulfenite

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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

2.85-3.356.50-7.00

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Irregular, Brittle, Conchoidal

1.6 Cleavage

Indistinct

On {011}, distinct; on {001}, {013}, indistinct

1.7 Mohs Hardness

7-7.53

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.

PbMoO 4Walter Schumann , Gemstones of the world (2001)

Tourmaline and Wulfenite Chemical Formula

While comparing Tourmaline and Wulfenite 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 Wulfenite 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 Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)

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Tourmaline and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tourmaline and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.