Omphacite and Fayalite Physical Properties

Omphacite

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

3.16-3.434.392

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{110} Good, {110} Good

{010} moderate, {100} imperfect

1.7 Mohs Hardness

5-66.5-7

2 10

1.8 Chemical Composition

(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

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

Omphacite and Fayalite Chemical Formula

While comparing Omphacite 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 Omphacite and Fayalite chemical formula.

Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Omphacite and Fayalite Specific Gravity

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