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Apophyllite KF
Apophyllite KF

Pollucite
Pollucite



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Apophyllite KF
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Pollucite

Apophyllite KF and Pollucite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Readily soluble in HF

Durability

-
-

Specific Gravity

2.33-2.372.86-2.94
1 7.18
👆🏻

Fracture

Uneven
Conchoidal, Uneven

Cleavage

Perfect on {001}, imperfect on {110}
None observed

Mohs Hardness

4.5-56.5-7
2 10
👆🏻

Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Apophyllite KF and Pollucite Chemical Formula

While comparing Apophyllite KF and Pollucite 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 Pollucite chemical formula.

  • Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
  • Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Apophyllite KF and Pollucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.