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Pollucite
Pollucite

Apophyllite KF
Apophyllite KF



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Pollucite
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Apophyllite KF

Pollucite and Apophyllite KF Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Readily soluble in HF
-

Durability

-
-

Specific Gravity

2.86-2.942.33-2.37
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Uneven

Cleavage

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

Mohs Hardness

6.5-74.5-5
2 10
👆🏻

Chemical Composition

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

Pollucite and Apophyllite KF Chemical Formula

While comparing Pollucite and Apophyllite KF 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 Pollucite and Apophyllite KF chemical formula.

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

Pollucite and Apophyllite KF Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.