Sapphire and Taaffeite Physical Properties

Sapphire

Taaffeite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.033.60-3.61

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Conchoidal

1.6 Cleavage

None, but may exhibit parting

Imperfect/fair/absent

1.7 Mohs Hardness

98-8.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Sapphire and Taaffeite Chemical Formula

While comparing Sapphire and Taaffeite 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 Sapphire and Taaffeite chemical formula.

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

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Sapphire and Taaffeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Taaffeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Taaffeite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.60-3.61 whereas that of Taaffeite is 3.60-3.61.