Fayalite and Fluorapatite Physical Properties

Fayalite

Fluorapatite

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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

4.3923.1-3.25

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

{010} moderate, {100} imperfect

Indistinct

1.7 Mohs Hardness

6.5-75

2 10

1.8 Chemical Composition

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

Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Fayalite and Fluorapatite Chemical Formula

While comparing Fayalite and Fluorapatite 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 Fluorapatite chemical formula.

Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Fluorapatite- Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Compare Yellow Gemstones

Fayalite Vs Gadolinium Gallium Garnet

Fayalite Vs Hackmanite

Fayalite Vs Garnet

Fayalite and Fluorapatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fayalite and Fluorapatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fayalite and Fluorapatite Optical Properties during the identification of gemstone. Specific gravity of Fayalite is 3.1-3.25 whereas that of Fluorapatite is 3.1-3.25.