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Marcasite
Marcasite

Kyanite
Kyanite



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Marcasite
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Kyanite

Marcasite and Kyanite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.80-4.903.53-3.65
Amber
1 7.18
1.5 Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Splintery, Brittle, Metallic
1.6 Cleavage
{010} Indistinct
[100] perfect [010] imperfect with 79° angle between
1.7 Mohs Hardness
6-6.54-7
Amber
2 10
1.8 Chemical Composition
FeS 2Michael O’Donoghue , 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 O’Donoghue , 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.