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Fayalite
Fayalite

Howlite
Howlite



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Fayalite
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Howlite

Fayalite and Howlite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.392
Conchoidal
{010} moderate, {100} imperfect
6.5-7
Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
 
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-
-
2.45-2.58
Conchoidal
None
3-3.5
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Fayalite and Howlite Chemical Formula

While comparing Fayalite and Howlite 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 Howlite chemical formula.

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Fayalite and Howlite Specific Gravity

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