Pezzottaite and Rock Crystal Physical Properties

Pezzottaite

Rock Crystal

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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

2.90-3.14

2.65

1.5 Fracture

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

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Imperfect; basal

Not Available

1.7 Mohs Hardness

7.5-8

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 Rock Crystal Chemical Formula

While comparing Pezzottaite and Rock Crystal 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 Rock Crystal chemical formula.

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

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Pezzottaite and Rock Crystal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pezzottaite and Rock Crystal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Rock Crystal Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 2.65 whereas that of Rock Crystal is 2.65.