Pezzottaite and Falcons Eye Physical Properties

Pezzottaite

Falcons Eye

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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

2.90-3.142.58-2.64

1 7.18

1.5 Fracture

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

Gemstones of the world (2001)

1.6 Cleavage

Imperfect; basal

Not Available

1.7 Mohs Hardness

7.5-87

2 10

1.8 Chemical Composition

(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

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

Pezzottaite and Falcons Eye Chemical Formula

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

Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Chemical formula of Falcons Eye- SiO 2Walter Schumann , Gemstones of the world (2001)

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Pezzottaite and Falcons Eye Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pezzottaite and Falcons Eye Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Falcons Eye Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 2.58-2.64 whereas that of Falcons Eye is 2.58-2.64.