Mottramite and Cordierite Physical Properties

Mottramite

Cordierite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.92.57-2.66

1 7.18

1.5 Fracture

Sub-Conchoidal, Brittle, Metallic

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

None observed

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

1.7 Mohs Hardness

37-7.5

2 10

1.8 Chemical Composition

Not Available

Mg2Al4Si5O18

Mottramite and Cordierite Chemical Formula

While comparing Mottramite 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 Mottramite and Cordierite chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18

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Mottramite and Cordierite Specific Gravity

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