Cordierite and Celestine Physical Properties

Cordierite

Celestine

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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

2.57-2.663.90-4.00

1 7.18

1.5 Fracture

Subconchoidal, Conchoidal, Brittle

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

1.6 Cleavage

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

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

1.7 Mohs Hardness

7-7.53-3.5

2 10

1.8 Chemical Composition

Mg2Al4Si5O18

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

Cordierite and Celestine Chemical Formula

While comparing Cordierite and Celestine 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 Celestine chemical formula.

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

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Cordierite and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.