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Thulite
Thulite

Marcasite
Marcasite



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Thulite
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Marcasite

Thulite and Marcasite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.14.80-4.90
Amber
1 7.18
1.5 Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
1.6 Cleavage
Perfect {010} imperfect {100}
{010} Indistinct
1.7 Mohs Hardness
6-76-6.5
Amber
2 10
1.8 Chemical Composition
Ca2Al3(SiO4)3(OH)
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Thulite and Marcasite Chemical Formula

While comparing Thulite 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 Thulite and Marcasite chemical formula.

  • Chemical formula of Thulite- Ca2Al3(SiO4)3(OH)
  • Chemical formula of Marcasite- FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Thulite and Marcasite Specific Gravity

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