Marcasite and Cinnabar Physical Properties

Marcasite

Cinnabar

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Slightly sectile

1.2 Solubility

Not Available

1.04 x 10⁻²⁵ g per 100 ml water (Ksp at 25°C = 2 x 10⁻³²)

1.3 Durability

Not Available

1.4 Specific Gravity

4.80-4.902

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

{010} Indistinct

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

6-6.52-2.5

2 10

1.8 Chemical Composition

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

HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Marcasite and Cinnabar Chemical Formula

While comparing Marcasite and Cinnabar 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 Cinnabar chemical formula.

Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Yellow Gemstones

Marcasite Vs Mimetite

Marcasite Vs Mohawkite

Marcasite Vs Monazite

Marcasite and Cinnabar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Marcasite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marcasite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Marcasite is 2 whereas that of Cinnabar is 2.