Dravite and Marcasite Physical Properties

Dravite

Marcasite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.03-3.18

Uneven, Irregular, Conchoidal

{???} Indistinct

7-7.5

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

4.80-4.90

Uneven

{010} Indistinct

6-6.5

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

Dravite and Marcasite Chemical Formula

While comparing Dravite 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 Dravite and Marcasite chemical formula.

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Dravite and Marcasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Marcasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite Vs Marcasite during the identification of gemstone. Specific gravity of Dravite is whereas that of Marcasite is .