Pyrite Marcasite and Chalcedony Physical Properties

Pyrite Marcasite

Chalcedony

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.9-5.22.55-2.70

1 7.18

1.5 Fracture

Not Available

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

1.6 Cleavage

None

Absent

1.7 Mohs Hardness

6-6.56.5-7

2 10

1.8 Chemical Composition

Not Available

SiO₂

Pyrite Marcasite and Chalcedony Chemical Formula

While comparing Pyrite Marcasite and Chalcedony 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 Pyrite Marcasite and Chalcedony chemical formula.

Chemical formula of Chalcedony- SiO₂

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Pyrite Marcasite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite Marcasite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite Marcasite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Pyrite Marcasite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.