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Marcasite
Marcasite

Mottramite
Mottramite



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Marcasite
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Mottramite

Marcasite and Mottramite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

4.80-4.905.9
1 7.18
👆🏻

Fracture

Uneven
Sub-Conchoidal

Cleavage

{010} Indistinct
None observed

Mohs Hardness

6-6.53
2 10
👆🏻

Chemical Composition

FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
PbCu(VO4)(OH)

Marcasite and Mottramite Chemical Formula

While comparing Marcasite and Mottramite 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 Mottramite chemical formula.

  • Chemical formula of Marcasite- FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Marcasite and Mottramite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Marcasite and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marcasite and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Marcasite is 5.9 whereas that of Mottramite is 5.9.