Willemite and Powellite Physical Properties

Willemite

Powellite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.89-4.184.23

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

{0001}, {11 2 0} imperfect

{111} Distinct

1.7 Mohs Hardness

5.53.5-4

2 10

1.8 Chemical Composition

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Willemite and Powellite Chemical Formula

While comparing Willemite and Powellite 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 Willemite and Powellite chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Willemite and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Willemite and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Powellite Optical Properties during the identification of gemstone. Specific gravity of Willemite is 4.23 whereas that of Powellite is 4.23.