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Pyrophyllite
Pyrophyllite

Scheelite
Scheelite



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Pyrophyllite
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Scheelite

Pyrophyllite and Scheelite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.65-2.905.9-6.3
1 7.18
👆🏻

Fracture

-
Conchoidal, Uneven

Cleavage

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

Mohs Hardness

-99994.5-5
2 10
👆🏻

Chemical Composition

Al 2Si 4O 10(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyrophyllite and Scheelite Chemical Formula

While comparing Pyrophyllite 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 Pyrophyllite and Scheelite chemical formula.

  • Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Scheelite- CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyrophyllite and Scheelite Specific Gravity

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