Scheelite and Poudretteite Physical Properties

Scheelite

Poudretteite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.9-6.32.51-2.53

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Uneven

Conchoidal, Splintery

1.6 Cleavage

On {101}, distinct; on {112}, interrupted; on {001}, indistinct

None

1.7 Mohs Hardness

4.5-55

2 10

1.8 Chemical Composition

CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Scheelite and Poudretteite Chemical Formula

While comparing Scheelite and Poudretteite 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 Scheelite and Poudretteite chemical formula.

Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

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Scheelite and Poudretteite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scheelite and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scheelite and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Scheelite is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.