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Benitoite
Benitoite

Dumortierite
Dumortierite



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Benitoite
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Dumortierite

Benitoite and Dumortierite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

Insoluble: HCl
-

Durability

-
-

Specific Gravity

3.61-3.683.26-3.41
1 7.18
👆🏻

Fracture

Conchoidal
Fibrous, ConchoidalWalter Schumann

Cleavage

[10 1 1] poor
Distinct on {100}, poor on {110}; parting on {001}

Mohs Hardness

6-6.57-8.5
2 10
👆🏻

Chemical Composition

BaTiSi 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
AlAl6O3BSi3O18

Benitoite and Dumortierite Chemical Formula

While comparing Benitoite and Dumortierite 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 Dumortierite chemical formula.

  • Chemical formula of Benitoite- BaTiSi 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Dumortierite- AlAl6O3BSi3O18

Benitoite and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Benitoite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Benitoite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Benitoite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.