Chrysoprase and Powellite Physical Properties

Chrysoprase

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

2.58-2.644.23

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006)

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

1.6 Cleavage

None

{111} Distinct

1.7 Mohs Hardness

6.5-73.5-4

2 10

1.8 Chemical Composition

SiO₂ (with a high level of nickel impurities )

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

Chrysoprase and Powellite Chemical Formula

While comparing Chrysoprase 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 Chrysoprase and Powellite chemical formula.

Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Chrysoprase and Powellite Specific Gravity

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