Cordierite and Monazite Physical Properties

Cordierite

Monazite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.57-2.664.80-5.50

1 7.18

1.5 Fracture

Subconchoidal, Conchoidal, Brittle

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

7-7.55-5.5

2 10

1.8 Chemical Composition

Mg2Al4Si5O18

(Ce,La,Nd,Th)PO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Cordierite and Monazite Chemical Formula

While comparing Cordierite and Monazite 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 Monazite chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18
Chemical formula of Monazite- (Ce,La,Nd,Th)PO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Cordierite and Monazite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Monazite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Monazite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 4.80-5.50 whereas that of Monazite is 4.80-5.50.