Hackmanite and Fayalite Physical Properties

Hackmanite

Fayalite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.27-2.334.392

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Not Available

{010} moderate, {100} imperfect

1.7 Mohs Hardness

5.5-66.5-7

2 10

1.8 Chemical Composition

Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Hackmanite and Fayalite Chemical Formula

While comparing Hackmanite and Fayalite 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 Hackmanite and Fayalite chemical formula.

Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Hackmanite and Fayalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hackmanite and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hackmanite and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Hackmanite is 4.392 whereas that of Fayalite is 4.392.