Fayalite and Gaspeite Physical Properties

Fayalite

Gaspeite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.3923.71

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

{010} moderate, {100} imperfect

{10 1 1} Good

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

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

(Ni,Mg,Fe++)CO3

Fayalite and Gaspeite Chemical Formula

While comparing Fayalite and Gaspeite 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 Gaspeite chemical formula.

Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Gaspeite- (Ni,Mg,Fe++)CO3

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Fayalite and Gaspeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fayalite and Gaspeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fayalite and Gaspeite Optical Properties during the identification of gemstone. Specific gravity of Fayalite is 3.71 whereas that of Gaspeite is 3.71.