Legrandite and Wavellite Physical Properties

Legrandite

Wavellite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

3.98-4.042.36

1 7.18

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Fracture

Conchoidal

Uneven, Subconchoidal, Fibrous

Cleavage

Imperfect, poor one {100}

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

Mohs Hardness

4.5-53.5-4

2 10

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Chemical Composition

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Legrandite and Wavellite Chemical Formula

While comparing Legrandite 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 Legrandite and Wavellite chemical formula.

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

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Legrandite and Wavellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Wavellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Wavellite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 2.36 whereas that of Wavellite is 2.36.