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Albite
Albite

Cordierite Iolite
Cordierite Iolite



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Albite
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Cordierite Iolite

Albite and Cordierite Iolite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.60-2.652.56-2.66
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Uneven, ConchoidalWalter Schumann

Cleavage

Perfect on {001}, very good on {010}, imperfect on {110}
Distinct

Mohs Hardness

6-6.57-7.5
2 10
👆🏻

Chemical Composition

NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Albite and Cordierite Iolite Chemical Formula

While comparing Albite and Cordierite Iolite 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 Cordierite Iolite chemical formula.

  • Chemical formula of Albite- NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Albite and Cordierite Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Albite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Albite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Albite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.