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Dumortierite
Dumortierite

Siderite
Siderite



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Dumortierite
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Siderite

Dumortierite and Siderite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.26-3.41
Fibrous, ConchoidalWalter Schumann
Distinct on {100}, poor on {110}; parting on {001}
7-8.5
AlAl6O3BSi3O18
 
Brittle
-
-
3.83-3.89
Uneven, Conchoidal
Perfect on {01 1 1}
3.5-4.5
Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Dumortierite and Siderite Chemical Formula

While comparing Dumortierite and Siderite 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 Siderite chemical formula.

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Dumortierite and Siderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Siderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite Vs Siderite during the identification of gemstone. Specific gravity of Dumortierite is whereas that of Siderite is .