Poudretteite and Powellite Physical Properties

Poudretteite

Powellite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.51-2.534.23

1 7.18

1.5 Fracture

Conchoidal, Splintery

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

53.5-4

2 10

1.8 Chemical Composition

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Poudretteite and Powellite Chemical Formula

While comparing Poudretteite 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 Poudretteite and Powellite chemical formula.

Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Violet Gemstones

Poudretteite Vs Sapphire

Poudretteite Vs Rubellite

Poudretteite Vs Rutilated Quartz

Poudretteite and Powellite Specific Gravity

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