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Charlesite
Charlesite

Marcasite
Marcasite



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Charlesite
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Marcasite

Charlesite and Marcasite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.794.80-4.90
1 7.18
👆🏻

Fracture

Irregular/uneven
Uneven

Cleavage

Perfect on {10bar10}
{010} Indistinct

Mohs Hardness

2.56-6.5
2 10
👆🏻

Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Charlesite and Marcasite Chemical Formula

While comparing Charlesite and Marcasite 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 Charlesite and Marcasite chemical formula.

  • Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
  • Chemical formula of Marcasite- FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Charlesite and Marcasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Charlesite and Marcasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Charlesite and Marcasite Optical Properties during the identification of gemstone. Specific gravity of Charlesite is 4.80-4.90 whereas that of Marcasite is 4.80-4.90.