Falcons Eye and Petalite Physical Properties

Falcons Eye

Petalite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.642.40

1 7.18

1.5 Fracture

Gemstones of the world (2001)

Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

1.6 Cleavage

Not Available

Perfect on {001}, poor on {201} with 38.5° angle between the two

1.7 Mohs Hardness

76-6.5

2 10

1.8 Chemical Composition

SiO 2Walter Schumann , Gemstones of the world (2001)

LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Falcons Eye and Petalite Chemical Formula

While comparing Falcons Eye and Petalite 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 Falcons Eye and Petalite chemical formula.

Chemical formula of Falcons Eye- SiO 2Walter Schumann , Gemstones of the world (2001)
Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Falcons Eye Vs Heliodor Golden Beryl

Falcons Eye Vs Hackmanite

Falcons Eye Vs Gahnospinel

Falcons Eye and Petalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Falcons Eye and Petalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Falcons Eye and Petalite Optical Properties during the identification of gemstone. Specific gravity of Falcons Eye is 2.40 whereas that of Petalite is 2.40.