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Cordierite
Cordierite

Tortoiseshell
Tortoiseshell



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Cordierite
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Tortoiseshell

Cordierite and Tortoiseshell Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.57-2.661.25-1.35
Amber
1 7.18
1.5 Fracture
Subconchoidal, Conchoidal, Brittle
Not Available
1.6 Cleavage
Fair on {100}, poor on {001} and {010}
Not Available
1.7 Mohs Hardness
7-7.5Not Available
Amber
2 10
1.8 Chemical Composition
Mg2Al4Si5O18
Not Available

Cordierite and Tortoiseshell Chemical Formula

While comparing Cordierite and Tortoiseshell 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 Cordierite and Tortoiseshell chemical formula.

  • Chemical formula of Cordierite- Mg2Al4Si5O18
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Cordierite and Tortoiseshell Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Tortoiseshell Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Tortoiseshell Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 1.25-1.35 whereas that of Tortoiseshell is 1.25-1.35.