Magnesite and Marcasite Physical Properties

Magnesite

Marcasite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in hot HCl

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.92-3.124.80-4.90

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

[10 1 1] perfect

{010} Indistinct

1.7 Mohs Hardness

3.5-4.56-6.5

2 10

1.8 Chemical Composition

MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Magnesite and Marcasite Chemical Formula

While comparing Magnesite 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 Magnesite and Marcasite chemical formula.

Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Magnesite and Marcasite Specific Gravity

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