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Marcasite
Marcasite

Iddingsite
Iddingsite



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Marcasite
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Iddingsite

Marcasite and Iddingsite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.80-4.90
Uneven
{010} Indistinct
6-6.5
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
2.5-2.8
-
{???} Perfect
3
MgO.Fe2O3.3SiO2•4(H2O)

Marcasite and Iddingsite Chemical Formula

While comparing Marcasite and Iddingsite 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 Iddingsite chemical formula.

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Marcasite and Iddingsite Specific Gravity

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