Pezzottaite and Sylvite Physical Properties

Pezzottaite

Sylvite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.141.993

1 7.18

1.5 Fracture

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

Uneven, Brittle

1.6 Cleavage

Imperfect; basal

Perfect on [100], [010], [001]

1.7 Mohs Hardness

7.5-82.5

2 10

1.8 Chemical Composition

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

Not Available

Pezzottaite and Sylvite Chemical Formula

While comparing Pezzottaite and Sylvite 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 Sylvite chemical formula.

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

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Pezzottaite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pezzottaite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 1.993 whereas that of Sylvite is 1.993.