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Poudretteite
Poudretteite

Scheelite
Scheelite



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Poudretteite
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Scheelite

Poudretteite and Scheelite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.51-2.535.9-6.3
1 7.18
👆🏻

Fracture

Conchoidal, Splintery
Conchoidal, Uneven

Cleavage

None
On {101}, distinct; on {112}, interrupted; on {001}, indistinct

Mohs Hardness

54.5-5
2 10
👆🏻

Chemical Composition

KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)
CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Poudretteite and Scheelite Chemical Formula

While comparing Poudretteite and Scheelite 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 Scheelite chemical formula.

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

Poudretteite and Scheelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poudretteite and Scheelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poudretteite and Scheelite Optical Properties during the identification of gemstone. Specific gravity of Poudretteite is 5.9-6.3 whereas that of Scheelite is 5.9-6.3.