Marcasite and Rock Crystal Physical Properties

Marcasite

Rock Crystal

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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

4.80-4.902.65

1 7.18

1.5 Fracture

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

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

{010} Indistinct

Not Available

1.7 Mohs Hardness

6-6.57

2 10

1.8 Chemical Composition

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

SiO 2Walter Schumann , Gemstones of the world (2001)

Marcasite and Rock Crystal Chemical Formula

While comparing Marcasite and Rock Crystal 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 Rock Crystal chemical formula.

Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

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Marcasite and Rock Crystal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Marcasite and Rock Crystal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marcasite and Rock Crystal Optical Properties during the identification of gemstone. Specific gravity of Marcasite is 2.65 whereas that of Rock Crystal is 2.65.