Taaffeite and Topaz Physical Properties

Taaffeite

Topaz

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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

3.60-3.613.49-3.57

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Imperfect/fair/absent

[001] Perfect

1.7 Mohs Hardness

8-8.58

2 10

1.8 Chemical Composition

Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Al₂SiO₄(F,OH)₂

Taaffeite and Topaz Chemical Formula

While comparing Taaffeite and Topaz 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 Taaffeite and Topaz chemical formula.

Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Topaz- Al₂SiO₄(F,OH)₂

Compare Colorless Gems

Taaffeite Vs Kashmir sapphire

Taaffeite Vs Blue quartz

Taaffeite Vs Swiss blue topaz

Taaffeite and Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Taaffeite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Taaffeite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Taaffeite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.