Marcasite and Demantoid Physical Properties

Marcasite

Demantoid

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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

4.80-4.903.77-3.95

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

2 10

1.8 Chemical Composition

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

Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

Marcasite and Demantoid Chemical Formula

While comparing Marcasite and Demantoid 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 Demantoid chemical formula.

Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

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Marcasite and Demantoid Specific Gravity

Another important criteria for qualitative analysis of gemstones is Marcasite and Demantoid Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marcasite and Demantoid Optical Properties during the identification of gemstone. Specific gravity of Marcasite is 3.77-3.95 whereas that of Demantoid is 3.77-3.95.