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Benitoite
Benitoite

Cordierite
Cordierite



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Benitoite
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Cordierite

Benitoite and Cordierite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

Insoluble: HCl
-

Durability

-
-

Specific Gravity

3.61-3.682.57-2.66
1 7.18
👆🏻

Fracture

Conchoidal
Subconchoidal, Conchoidal

Cleavage

[10 1 1] poor
Fair on {100}, poor on {001} and {010}

Mohs Hardness

6-6.57-7.5
2 10
👆🏻

Chemical Composition

BaTiSi 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Mg2Al4Si5O18

Benitoite and Cordierite Chemical Formula

While comparing Benitoite and Cordierite 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 Benitoite and Cordierite chemical formula.

  • Chemical formula of Benitoite- BaTiSi 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Cordierite- Mg2Al4Si5O18

Benitoite and Cordierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Benitoite and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Benitoite and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Benitoite is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.