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Sardonyx
Sardonyx

Topaz
Topaz



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Sardonyx
X
Topaz

Sardonyx and Topaz Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.55-2.703.49-3.57
Amber
1 7.18
1.5 Fracture
Not Available
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
1.6 Cleavage
Not Available
[001] Perfect
1.7 Mohs Hardness
6.5-78
Amber
2 10
1.8 Chemical Composition
SiO 2Ulrich Henn and Claudio C.
Al2SiO4(F,OH)2

Sardonyx and Topaz Chemical Formula

While comparing Sardonyx 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 Sardonyx and Topaz chemical formula.

  • Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
  • Chemical formula of Topaz- Al2SiO4(F,OH)2

Sardonyx and Topaz Specific Gravity

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