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Cordierite and Hodgkinsonite Physical Properties


Hodgkinsonite and Cordierite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.57-2.66   
4.06-4.08   

Fracture
Subconchoidal, Conchoidal, Brittle   
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic   

Cleavage
Fair on {100}, poor on {001} and {010}   
{???} Perfect   

Mohs Hardness
7-7.5   
4.5-5   

Chemical Composition
Mg2Al4Si5O18   
Mn2+ Zn 2SiO 4(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Cordierite and Hodgkinsonite Chemical Formula

While comparing Cordierite and Hodgkinsonite 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 Hodgkinsonite chemical formula.

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Cordierite and Hodgkinsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Hodgkinsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Hodgkinsonite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 4.06-4.08 whereas that of Hodgkinsonite is 4.06-4.08.

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