Bastnasite and Cordierite Physical Properties

Bastnasite

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

4.95-5.02.57-2.66

1 7.18

1.5 Fracture

Uneven

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

Imperfect to indistinct on {10 1 0}, parting on {0001}

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

1.7 Mohs Hardness

4-57-7.5

2 10

1.8 Chemical Composition

(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Mg2Al4Si5O18

Bastnasite and Cordierite Chemical Formula

While comparing Bastnasite 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 Bastnasite and Cordierite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cordierite- Mg2Al4Si5O18

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Bastnasite and Cordierite Specific Gravity

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