Hauyne and Fayalite Physical Properties

Hauyne

Fayalite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Gelatinises in acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.4-2.54.392

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle

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

1.6 Cleavage

Distinct on {110}

{010} moderate, {100} imperfect

1.7 Mohs Hardness

5-66.5-7

2 10

1.8 Chemical Composition

(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

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

Hauyne and Fayalite Chemical Formula

While comparing Hauyne 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 Hauyne and Fayalite chemical formula.

Chemical formula of Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Hauyne and Fayalite Specific Gravity

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