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Shigaite and Topaz Physical Properties


Topaz and Shigaite Physical Properties


Physical Properties

Tenacity
Moderately flexible   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.32   
3.49-3.57   

Fracture
Flexible Flexible fragments.   
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle   

Cleavage
Perfect on {0001}   
[001] Perfect   

Mohs Hardness
2   
8   

Chemical Composition
Not Available   
Al2SiO4(F,OH)2   

Optical Properties >>
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Shigaite and Topaz Chemical Formula

While comparing Shigaite and Topaz 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 Shigaite and Topaz chemical formula.

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Shigaite and Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Shigaite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shigaite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Shigaite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.

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