Almandine and Taaffeite Physical Properties

Almandine

Taaffeite

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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

3.95-4.30

3.60-3.61

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Conchoidal

1.6 Cleavage

none

Imperfect/fair/absent

1.7 Mohs Hardness

7-7.5

8-8.5

1.8 Chemical Composition

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

Almandine and Taaffeite Chemical Formula

While comparing Almandine 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 Almandine and Taaffeite chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

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Almandine and Taaffeite Specific Gravity

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