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Diaspore and Sard Physical Properties


Sard and Diaspore Physical Properties


Physical Properties

Tenacity
Very brittle   
Not Available   

Solubility
insoluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.30-3.40   
2.58-2.63   

Fracture
Conchoidal, Brittle, Conchoidal   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
{010} perfect, {110} distinct, {100} in traces   
Not Available   

Mohs Hardness
6.5-7   
6.5-7   

Chemical Composition
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references   
SiO 2Ulrich Henn and Claudio C.   

Optical Properties >>
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Diaspore and Sard Chemical Formula

While comparing Diaspore and Sard 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 Diaspore and Sard chemical formula.

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Diaspore and Sard Specific Gravity

Another important criteria for qualitative analysis of gemstones is Diaspore and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diaspore and Sard Optical Properties during the identification of gemstone. Specific gravity of Diaspore is 2.58-2.63 whereas that of Sard is 2.58-2.63.

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