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Mellite
Mellite

Taaffeite
Taaffeite



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Mellite
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Taaffeite

Mellite and Taaffeite Physical Properties

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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.58-1.603.60-3.61
1 7.18
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Fracture

Conchoidal
Conchoidal

Cleavage

{011} Imperfect
Imperfect/fair/absent

Mohs Hardness

28-8.5
2 10
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Chemical Composition

Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Mellite and Taaffeite Chemical Formula

While comparing Mellite 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 Mellite and Taaffeite chemical formula.

  • Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
  • Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Mellite and Taaffeite Specific Gravity

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