Ajoite and Marcasite Physical Properties

Ajoite

Marcasite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Decomposed by acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.964.80-4.90

1 7.18

1.5 Fracture

Not Available

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

Perfect on {010}

{010} Indistinct

1.7 Mohs Hardness

56-6.5

2 10

1.8 Chemical Composition

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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

Ajoite and Marcasite Chemical Formula

While comparing Ajoite 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 Ajoite and Marcasite chemical formula.

Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Ajoite and Marcasite Specific Gravity

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