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Marcasite
Marcasite

Dioptase
Dioptase



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Marcasite
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Dioptase

Marcasite and Dioptase Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.80-4.903.25-3.35
Amber
1 7.18
1.5 Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
1.6 Cleavage
{010} Indistinct
Perfect in three directions
1.7 Mohs Hardness
6-6.55
Amber
2 10
1.8 Chemical Composition
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CuSiO 2(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Marcasite and Dioptase Chemical Formula

While comparing Marcasite and Dioptase 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 Dioptase chemical formula.

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

Marcasite and Dioptase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Marcasite and Dioptase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marcasite and Dioptase Optical Properties during the identification of gemstone. Specific gravity of Marcasite is 3.25-3.35 whereas that of Dioptase is 3.25-3.35.