Wavellite and Opal Physical Properties

Wavellite

Opal

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1 Physical Properties

1.1 Tenacity

Not Available

BrittleWalter Schumann

1.2 Solubility

insoluble

hot salt water

1.3 Durability

Not Available

1.4 Specific Gravity

2.361.98-2.25

1 7.18

1.5 Fracture

Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle

1.6 Cleavage

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

None

1.7 Mohs Hardness

3.5-45-6.5

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

SiO₂ · nH₂O

Wavellite and Opal Chemical Formula

While comparing Wavellite and Opal 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 Opal 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 Opal- SiO₂ · nH₂O

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Wavellite and Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wavellite and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wavellite and Opal Optical Properties during the identification of gemstone. Specific gravity of Wavellite is 1.98-2.25 whereas that of Opal is 1.98-2.25.