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Fayalite and Londonite Physical Properties


Londonite and Fayalite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.392   
3.34   

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

Cleavage
{010} moderate, {100} imperfect   
None   

Mohs Hardness
6.5-7   
Not Available   

Chemical Composition
Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)   
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
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Fayalite and Londonite Chemical Formula

While comparing Fayalite and Londonite 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 Londonite chemical formula.

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Fayalite and Londonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fayalite and Londonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fayalite and Londonite Optical Properties during the identification of gemstone. Specific gravity of Fayalite is 3.34 whereas that of Londonite is 3.34.

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Yellow Gemstones


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