Plumbogummite and Fayalite Physical Properties

Plumbogummite

Fayalite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.0144.392

1 7.18

1.5 Fracture

Uneven, Conchoidal

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

1.6 Cleavage

None

{010} moderate, {100} imperfect

1.7 Mohs Hardness

4-56.5-7

2 10

1.8 Chemical Composition

Not Available

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

Plumbogummite and Fayalite Chemical Formula

While comparing Plumbogummite 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 Plumbogummite and Fayalite chemical formula.

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

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Plumbogummite and Fayalite Specific Gravity

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