Precious Opal and Aquamarine Physical Properties

Precious Opal

Aquamarine

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.252.66-2.80

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Not Available

3,1 basal

1.7 Mohs Hardness

5-6.57.5-8

2 10

1.8 Chemical Composition

SiO 2 · nH 2OGemdat.org , Management Team (2012)

Be₃Al₂SiO₆

Precious Opal and Aquamarine Chemical Formula

While comparing Precious Opal and Aquamarine 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 Precious Opal and Aquamarine chemical formula.

Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
Chemical formula of Aquamarine- Be₃Al₂SiO₆

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Precious Opal and Aquamarine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Precious Opal and Aquamarine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Aquamarine Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 2.66-2.80 whereas that of Aquamarine is 2.66-2.80.