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Albite
Albite

Mellite
Mellite



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Albite
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Mellite

Albite and Mellite Physical Properties

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Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.60-2.651.58-1.60
1 7.18
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Fracture

Uneven, Conchoidal
Conchoidal

Cleavage

Perfect on {001}, very good on {010}, imperfect on {110}
{011} Imperfect

Mohs Hardness

6-6.52
2 10
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Chemical Composition

NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Albite and Mellite Chemical Formula

While comparing Albite and Mellite 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 Albite and Mellite chemical formula.

  • Chemical formula of Albite- NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Albite and Mellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Albite and Mellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Albite and Mellite Optical Properties during the identification of gemstone. Specific gravity of Albite is 1.58-1.60 whereas that of Mellite is 1.58-1.60.