Cordierite and Langbeinite Physical Properties

Cordierite

Langbeinite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Slowly dissolves in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.57-2.66Not Available

1 7.18

1.5 Fracture

Subconchoidal, Conchoidal, Brittle

Conchoidal, Brittle

1.6 Cleavage

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

None

1.7 Mohs Hardness

7-7.53.5-4

2 10

1.8 Chemical Composition

Mg2Al4Si5O18

Not Available

Cordierite and Langbeinite Chemical Formula

While comparing Cordierite and Langbeinite 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 Langbeinite chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18

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Cordierite and Langbeinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is Not Available whereas that of Langbeinite is Not Available.