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Apophyllite KF
Apophyllite KF

Scheelite
Scheelite



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Apophyllite KF
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Scheelite

Apophyllite KF and Scheelite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.33-2.375.9-6.3
1 7.18
👆🏻

Fracture

Uneven
Conchoidal, Uneven

Cleavage

Perfect on {001}, imperfect on {110}
On {101}, distinct; on {112}, interrupted; on {001}, indistinct

Mohs Hardness

4.5-54.5-5
2 10
👆🏻

Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)
CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Apophyllite KF and Scheelite Chemical Formula

While comparing Apophyllite KF 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 Apophyllite KF and Scheelite chemical formula.

  • Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
  • Chemical formula of Scheelite- CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Apophyllite KF and Scheelite Specific Gravity

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