Coral and Cordierite Physical Properties

Coral

Cordierite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.60-2.702.57-2.66

1 7.18

1.5 Fracture

Irregular, Irregular, Gemstones of the world (2001)

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

3-47-7.5

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

Mg2Al4Si5O18

Coral and Cordierite Chemical Formula

While comparing Coral 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 Coral and Cordierite chemical formula.

Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Cordierite- Mg2Al4Si5O18

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Coral and Cordierite Specific Gravity

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