Fayalite and Chalcopyrite Physical Properties

Fayalite

Chalcopyrite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.3924.1-4.3

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Uneven, Brittle, Metallic

1.6 Cleavage

{010} moderate, {100} imperfect

Indistinct on {011}

1.7 Mohs Hardness

6.5-73.5-4

2 10

1.8 Chemical Composition

Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

CuFeS 2Anthony et al , Handbook of mineralogy (2001)

Fayalite and Chalcopyrite Chemical Formula

While comparing Fayalite and Chalcopyrite 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 Fayalite and Chalcopyrite chemical formula.

Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Chalcopyrite- CuFeS 2Anthony et al , Handbook of mineralogy (2001)

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Fayalite and Chalcopyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fayalite and Chalcopyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fayalite and Chalcopyrite Optical Properties during the identification of gemstone. Specific gravity of Fayalite is 4.1-4.3 whereas that of Chalcopyrite is 4.1-4.3.