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Plumbogummite
Plumbogummite

Willemite
Willemite



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Plumbogummite
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Willemite

Plumbogummite and Willemite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
4.014
Uneven, Conchoidal
None
4-5
PbAl3(PO4)(SO4)(OH)6
 
-
-
-
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

Plumbogummite and Willemite Chemical Formula

While comparing Plumbogummite 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 Plumbogummite and Willemite chemical formula.

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Plumbogummite and Willemite Specific Gravity

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