Chrysoberyl and Fayalite Physical Properties

Chrysoberyl

Fayalite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.69-3.814.392

1 7.18

1.5 Fracture

Uneven, Conchoidal to uneven, Brittle, Metallic, Uneven, ConchoidalWalter Schumann, Brittle, Metallic

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

1.6 Cleavage

Distinct on {110}, imperfect on {010}, poor on {001}

{010} moderate, {100} imperfect

1.7 Mohs Hardness

8.56.5-7

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

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

Chrysoberyl and Fayalite Chemical Formula

While comparing Chrysoberyl 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 Chrysoberyl and Fayalite chemical formula.

Chemical formula of Chrysoberyl- BeAl ₂ O ₄
Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Chrysoberyl and Fayalite Specific Gravity

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