Wavellite and Purpurite Physical Properties

Wavellite

Purpurite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.363.2-3.4

1 7.18

1.5 Fracture

Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

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

[100] [001] perfect

1.7 Mohs Hardness

3.5-44-4.5

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

MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

Wavellite and Purpurite Chemical Formula

While comparing Wavellite and Purpurite 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 Purpurite 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 Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

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Wavellite and Purpurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wavellite and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wavellite and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Wavellite is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.