Topaz and Cymophane Physical Properties

Topaz

Cymophane

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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

3.49-3.573.69-3.81

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

[001] Perfect

Not Available

1.7 Mohs Hardness

88.5

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

BeAl 2O 4Arthur Thomas , Gemstones (2009)

Topaz and Cymophane Chemical Formula

While comparing Topaz and Cymophane 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 Cymophane chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Cymophane- BeAl 2O 4Arthur Thomas , Gemstones (2009)

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Topaz and Cymophane Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Cymophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Cymophane Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.69-3.81 whereas that of Cymophane is 3.69-3.81.