Piemontite and Fayalite Physical Properties

Piemontite

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

Not Available4.392

1 7.18

1.5 Fracture

Uneven, Splintery

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

1.6 Cleavage

[001] good, [100] distinct

{010} moderate, {100} imperfect

1.7 Mohs Hardness

6-6.56.5-7

2 10

1.8 Chemical Composition

Not Available

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

Piemontite and Fayalite Chemical Formula

While comparing Piemontite 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 Piemontite and Fayalite chemical formula.

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

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Piemontite and Fayalite Specific Gravity

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