Fayalite and Albite Physical Properties

Fayalite

Albite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.3922.60-2.65

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal

1.6 Cleavage

{010} moderate, {100} imperfect

Perfect on {001}, very good on {010}, imperfect on {110}

1.7 Mohs Hardness

6.5-76-6.5

2 10

1.8 Chemical Composition

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

NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Fayalite and Albite Chemical Formula

While comparing Fayalite and Albite 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 Albite chemical formula.

Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Fayalite and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fayalite and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fayalite and Albite Optical Properties during the identification of gemstone. Specific gravity of Fayalite is 2.60-2.65 whereas that of Albite is 2.60-2.65.