Sardonyx and Marcasite Physical Properties

Sardonyx

Marcasite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.704.80-4.90

1 7.18

1.5 Fracture

Not Available

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

Not Available

{010} Indistinct

1.7 Mohs Hardness

6.5-76-6.5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sardonyx and Marcasite Chemical Formula

While comparing Sardonyx and Marcasite 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 Marcasite chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sardonyx and Marcasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sardonyx and Marcasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sardonyx and Marcasite Optical Properties during the identification of gemstone. Specific gravity of Sardonyx is 4.80-4.90 whereas that of Marcasite is 4.80-4.90.