Marcasite and Kyanite Physical Properties

Marcasite

Kyanite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.4 Solubility

Not Available

1.6 Durability

Not Available

1.7 Specific Gravity

4.80-4.903.53-3.65

1 7.18

1.8 Fracture

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

Splintery, Brittle, Metallic

1.9 Cleavage

{010} Indistinct

[100] perfect [010] imperfect with 79° angle between

1.10 Mohs Hardness

6-6.54-7

2 10

1.13 Chemical Composition

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

Not Available

Marcasite and Kyanite Chemical Formula

While comparing Marcasite and Kyanite 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 Kyanite chemical formula.

Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Marcasite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Marcasite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marcasite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Marcasite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.