Jacobsite and Marcasite Physical Properties

Jacobsite

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

4.76-5.034.80-4.90

1 7.18

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

None

{010} Indistinct

1.7 Mohs Hardness

5.5-6.56-6.5

2 10

1.8 Chemical Composition

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

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

Jacobsite and Marcasite Chemical Formula

While comparing Jacobsite 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 Jacobsite and Marcasite chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Jacobsite and Marcasite Specific Gravity

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