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Chalcedony
Chalcedony

Willemite
Willemite



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Chalcedony
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Willemite

Chalcedony and Willemite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
Soluble
-
2.55-2.70
Uneven, Splintery, Conchoidal
Absent
6.5-7
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

Chalcedony and Willemite Chemical Formula

While comparing Chalcedony 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 Chalcedony and Willemite chemical formula.

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Chalcedony and Willemite Specific Gravity

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