Wavellite and Poldervaartite Physical Properties

Wavellite

Poldervaartite

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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

2.362.91

1 7.18

1.5 Fracture

Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous

Handbook of mineralogy (2001)

1.6 Cleavage

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

None

1.7 Mohs Hardness

3.5-4Not Available

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

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Wavellite and Poldervaartite Chemical Formula

While comparing Wavellite and Poldervaartite 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 Poldervaartite 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 Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

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Wavellite and Poldervaartite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wavellite and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wavellite and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Wavellite is 2.91 whereas that of Poldervaartite is 2.91.