Pollucite and Ceylonite Physical Properties

Pollucite

Ceylonite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Readily soluble in HF

none

1.3 Durability

Not Available

1.4 Specific Gravity

2.86-2.943.63-3.9

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None observed

Indistinct

1.7 Mohs Hardness

6.5-77.5-8

2 10

1.8 Chemical Composition

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

(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references

Pollucite and Ceylonite Chemical Formula

While comparing Pollucite and Ceylonite 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 Ceylonite 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 Ceylonite- (Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references

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Pollucite and Ceylonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Ceylonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Ceylonite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 3.63-3.9 whereas that of Ceylonite is 3.63-3.9.