Fayalite and Orthoclase Physical Properties

Fayalite

Orthoclase

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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

4.3922.54-2.61

1 7.18

1.5 Fracture

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

Gems, Uneven

1.6 Cleavage

{010} moderate, {100} imperfect

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

1.7 Mohs Hardness

6.5-76

2 10

1.8 Chemical Composition

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

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Fayalite and Orthoclase Chemical Formula

While comparing Fayalite and Orthoclase 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 Orthoclase chemical formula.

Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Fayalite and Orthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fayalite and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fayalite and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Fayalite is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.