Agrellite and Fayalite Physical Properties

Agrellite

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

2.884.392

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

perfect [110]

{010} moderate, {100} imperfect

1.7 Mohs Hardness

5.56.5-7

2 10

1.8 Chemical Composition

NaCa2Si4O10F

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

Agrellite and Fayalite Chemical Formula

While comparing Agrellite 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 Agrellite and Fayalite chemical formula.

Chemical formula of Agrellite- NaCa2Si4O10F
Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Agrellite and Fayalite Specific Gravity

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