Jade and Marcasite Physical Properties

Jade

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

2.90-3.384.80-4.90

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

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

1.6 Cleavage

1 or 2,2 prismatic.

{010} Indistinct

1.7 Mohs Hardness

6-76-6.5

2 10

1.8 Chemical Composition

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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

Jade and Marcasite Chemical Formula

While comparing Jade 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 Jade and Marcasite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Jade and Marcasite Specific Gravity

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