Wulfenite and Tourmaline Physical Properties

Wulfenite

Tourmaline

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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

6.50-7.002.85-3.35

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Indistinct

1.7 Mohs Hardness

37-7.5

2 10

1.8 Chemical Composition

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

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

Wulfenite and Tourmaline Chemical Formula

While comparing Wulfenite and Tourmaline 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 Wulfenite and Tourmaline chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

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Wulfenite and Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wulfenite and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.