Datolite and Fayalite Physical Properties

Datolite

Fayalite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.004.392

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic

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

1.6 Cleavage

None

{010} moderate, {100} imperfect

1.7 Mohs Hardness

5-5.56.5-7

2 10

1.8 Chemical Composition

CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Datolite and Fayalite Chemical Formula

While comparing Datolite 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 Datolite and Fayalite chemical formula.

Chemical formula of Datolite- CaBSiO 4(OH)Michael 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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Datolite and Fayalite Specific Gravity

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