Verdite and Pollucite Physical Properties

Verdite

Pollucite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Readily soluble in HF

1.3 Durability

Not Available

1.4 Specific Gravity

2.80-3.02.86-2.94

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

{110} Good

None observed

1.7 Mohs Hardness

36.5-7

2 10

1.8 Chemical Composition

NaFeS2•2(H2O)

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

Verdite and Pollucite Chemical Formula

While comparing Verdite 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 Verdite and Pollucite chemical formula.

Chemical formula of Verdite- NaFeS2•2(H2O)
Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

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Verdite and Pollucite Specific Gravity

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