Cordierite and Wulfenite Physical Properties

Cordierite

Wulfenite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.57-2.666.50-7.00

1 7.18

1.5 Fracture

Subconchoidal, Conchoidal, Brittle

Irregular, Brittle, Conchoidal

1.6 Cleavage

Fair on {100}, poor on {001} and {010}

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

1.7 Mohs Hardness

7-7.53

2 10

1.8 Chemical Composition

Mg2Al4Si5O18

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

Cordierite and Wulfenite Chemical Formula

While comparing Cordierite 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 Cordierite and Wulfenite chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18
Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)

Compare Blue Gemstones

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Cordierite Vs Rosasite

Cordierite and Wulfenite Specific Gravity

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