Marcasite and Chrome-Chalcedony Physical Properties

Marcasite

Chrome-Chalcedony

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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

4.80-4.902.55-2.70

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{010} Indistinct

Not Available

1.7 Mohs Hardness

6-6.56.5-7

2 10

1.8 Chemical Composition

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

SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

Marcasite and Chrome-Chalcedony Chemical Formula

While comparing Marcasite and Chrome-Chalcedony 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 Marcasite and Chrome-Chalcedony chemical formula.

Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

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Marcasite and Chrome-Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Marcasite and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marcasite and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Marcasite is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.