Wavellite and Pollucite Physical Properties

Wavellite

Pollucite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble

Readily soluble in HF

1.3 Durability

Not Available

1.4 Specific Gravity

2.362.86-2.94

1 7.18

1.5 Fracture

Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous

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

1.6 Cleavage

[110] perfect, [101] good, [010] distinct

None observed

1.7 Mohs Hardness

3.5-46.5-7

2 10

1.8 Chemical Composition

Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Wavellite and Pollucite Chemical Formula

While comparing Wavellite 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 Wavellite and Pollucite chemical formula.

Chemical formula of Wavellite- Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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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Wavellite and Pollucite Specific Gravity

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