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Thulite
Thulite

Willemite
Willemite



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Thulite
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Willemite

Thulite and Willemite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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3.1
Uneven, Conchoidal
Perfect {010} imperfect {100}
6-7
Ca2Al3(SiO4)3(OH)
 
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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

Thulite and Willemite Chemical Formula

While comparing Thulite 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 Thulite and Willemite chemical formula.

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Thulite and Willemite Specific Gravity

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