Cordierite and Bronzite Physical Properties

Cordierite

Bronzite

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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

2.57-2.663.35

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

2 10

1.8 Chemical Composition

Mg2Al4Si5O18

(Mg,Fe) 2Si 2O 6Ulrich Henn and Claudio C.

Cordierite and Bronzite Chemical Formula

While comparing Cordierite and Bronzite 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 Bronzite chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18
Chemical formula of Bronzite- (Mg,Fe) 2Si 2O 6Ulrich Henn and Claudio C.

Compare Blue Gemstones

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Cordierite Vs Plumbogummite

Cordierite Vs Rosasite

Cordierite and Bronzite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Bronzite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Bronzite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 3.35 whereas that of Bronzite is 3.35.