Pyrite Marcasite and Spinel Physical Properties

Pyrite Marcasite

Spinel

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

4.9-5.23.64-3.66

1 7.18

1.5 Fracture

Not Available

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

None, but may exhibit slight parting

1.7 Mohs Hardness

6-6.58

2 10

1.8 Chemical Composition

Not Available

MgAl₂O₄

Pyrite Marcasite and Spinel Chemical Formula

While comparing Pyrite Marcasite and Spinel 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 Pyrite Marcasite and Spinel chemical formula.

Chemical formula of Spinel- MgAl₂O₄

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Pyrite Marcasite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite Marcasite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite Marcasite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Pyrite Marcasite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.