Ludlamite and Fayalite Physical Properties

Ludlamite

Fayalite

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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

3.1-3.24.392

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Vitreous, pearly on cleavage

{010} moderate, {100} imperfect

1.7 Mohs Hardness

3-46.5-7

2 10

1.8 Chemical Composition

(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Ludlamite and Fayalite Chemical Formula

While comparing Ludlamite 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 Ludlamite and Fayalite chemical formula.

Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Ludlamite and Fayalite Specific Gravity

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