Villiaumite and Wavellite Physical Properties

Villiaumite

Wavellite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.79

{100} Perfect, {010} Perfect, {001} Perfect

NaFUlrich Henn and Claudio C.

insoluble

2.36

Uneven, Subconchoidal, Fibrous

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

3.5-4

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

Villiaumite and Wavellite Chemical Formula

While comparing Villiaumite and Wavellite 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 Villiaumite and Wavellite chemical formula.

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Villiaumite and Wavellite Specific Gravity

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