Topaz and Aquamarine Physical Properties

Topaz

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

3.49-3.572.66-2.80

1 7.18

1.5 Fracture

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Not Available

1.6 Cleavage

[001] Perfect

3,1 basal

1.7 Mohs Hardness

87.5-8

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

Be₃Al₂SiO₆

Topaz and Aquamarine Chemical Formula

While comparing Topaz 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 Topaz and Aquamarine chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Aquamarine- Be₃Al₂SiO₆

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Topaz and Aquamarine Specific Gravity

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