Celestine and Cordierite Physical Properties

Celestine

Cordierite

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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

3.90-4.002.57-2.66

1 7.18

1.5 Fracture

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

Perfect on {001}, good on {210}, poor on {010}

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

1.7 Mohs Hardness

3-3.57-7.5

2 10

1.8 Chemical Composition

SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Mg2Al4Si5O18

Celestine and Cordierite Chemical Formula

While comparing Celestine 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 Celestine and Cordierite chemical formula.

Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cordierite- Mg2Al4Si5O18

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Celestine and Cordierite Specific Gravity

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