Willemite and Chrysoprase Physical Properties

Willemite

Chrysoprase

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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

3.89-4.18

2.58-2.64

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

Gems, Sixth Edition (2006)

1.6 Cleavage

{0001}, {11 2 0} imperfect

None

1.7 Mohs Hardness

5.5

6.5-7

1.8 Chemical Composition

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

SiO₂ (with a high level of nickel impurities )

Willemite and Chrysoprase Chemical Formula

While comparing Willemite and Chrysoprase 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 Chrysoprase chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )

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Willemite and Chrysoprase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Willemite and Chrysoprase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Chrysoprase Optical Properties during the identification of gemstone. Specific gravity of Willemite is 2.58-2.64 whereas that of Chrysoprase is 2.58-2.64.