Langbeinite and Cordierite Physical Properties

Langbeinite

Cordierite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Slowly dissolves in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.57-2.66

1 7.18

1.5 Fracture

Conchoidal, Brittle

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

None

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

1.7 Mohs Hardness

3.5-47-7.5

2 10

1.8 Chemical Composition

Not Available

Mg2Al4Si5O18

Langbeinite and Cordierite Chemical Formula

While comparing Langbeinite and Cordierite 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 Langbeinite and Cordierite chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18

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Langbeinite and Cordierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Langbeinite and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Langbeinite and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Langbeinite is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.