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Dumortierite
Dumortierite

Willemite
Willemite



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Dumortierite
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Willemite

Dumortierite and Willemite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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3.26-3.41
Fibrous, ConchoidalWalter Schumann
Distinct on {100}, poor on {110}; parting on {001}
7-8.5
AlAl6O3BSi3O18
 
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3.89-4.18
Conchoidal, Uneven
{0001}, {11 2 0} imperfect
5.5
Zn 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Dumortierite and Willemite Chemical Formula

While comparing Dumortierite and Willemite 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 Dumortierite and Willemite chemical formula.

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Dumortierite and Willemite Specific Gravity

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