×

Pollucite
Pollucite

Sylvite
Sylvite



ADD
Compare
X
Pollucite
X
Sylvite

Pollucite and Sylvite Physical Properties

Add ⊕

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Readily soluble in HF
Soluble

Durability

-
-

Specific Gravity

2.86-2.941.993
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Uneven

Cleavage

None observed
Perfect on [100], [010], [001]

Mohs Hardness

6.5-72.5
2 10
👆🏻

Chemical Composition

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
KCl

Pollucite and Sylvite Chemical Formula

While comparing Pollucite and Sylvite 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 Sylvite 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 Sylvite- KCl

Pollucite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 1.993 whereas that of Sylvite is 1.993.