Cordierite and Caledonite Physical Properties

Cordierite

Caledonite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

2.57-2.66

Subconchoidal, Conchoidal

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

7-7.5

Mg2Al4Si5O18

Brittle

5.6-5.76

Uneven

[001] perfect; [100] distinct

2.5-3

Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Cordierite and Caledonite Chemical Formula

While comparing Cordierite and Caledonite 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 Caledonite chemical formula.

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Cordierite and Caledonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite Vs Caledonite during the identification of gemstone. Specific gravity of Cordierite is whereas that of Caledonite is .