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Marcasite
Marcasite

Piemontite
Piemontite



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Marcasite
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Piemontite

Marcasite and Piemontite 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
 
Brittle
-
-
-9999
Uneven, Splintery
[001] good, [100] distinct
6-6.5
Ca2Al3(SiO4)(Si2O7)O(OH)

Marcasite and Piemontite Chemical Formula

While comparing Marcasite and Piemontite 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 Piemontite chemical formula.

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Marcasite and Piemontite Specific Gravity

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