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Quartz
Quartz

Willemite
Willemite



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Quartz
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Willemite

Quartz and Willemite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.65
Conchoidal
{0110} Indistinct
7
SiO2
 
-
-
-
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

Quartz and Willemite Chemical Formula

While comparing Quartz 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 Quartz and Willemite chemical formula.

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Quartz and Willemite Specific Gravity

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