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Dumortierite
Dumortierite

Adamite
Adamite



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Dumortierite
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Adamite

Dumortierite and Adamite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.26-3.414.32-4.48
Amber
1 7.18
1.5 Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
1.6 Cleavage
Distinct on {100}, poor on {110}; parting on {001}
{101}, good; {010}, poor
1.7 Mohs Hardness
7-8.53.5
Amber
2 10
1.8 Chemical Composition
AlAl6O3BSi3O18
Zn 2(AsO 4)(OH)Michael O’Donoghue , Gems, Sixth edition (2006)

Dumortierite and Adamite Chemical Formula

While comparing Dumortierite and Adamite 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 Dumortierite and Adamite chemical formula.

  • Chemical formula of Dumortierite- AlAl6O3BSi3O18
  • Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael O’Donoghue , Gems, Sixth edition (2006)

Dumortierite and Adamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Adamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Adamite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 4.32-4.48 whereas that of Adamite is 4.32-4.48.