Pollucite and Verdelite Physical Properties

Pollucite

Verdelite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

Readily soluble in HF

2.86-2.94

Conchoidal, Uneven

None observed

6.5-7

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

2.90-3.40

Conchoidal

Indiscernible

7-7.5

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Pollucite and Verdelite Chemical Formula

While comparing Pollucite and Verdelite 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 Verdelite chemical formula.

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Pollucite and Verdelite Specific Gravity

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