Zinnwaldite and Pezzottaite Physical Properties

Zinnwaldite

Pezzottaite

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1 Physical Properties

1.1 Tenacity

Elastic

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.12.90-3.14

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Perfect basal {001}

Imperfect; basal

1.7 Mohs Hardness

3.5-4.07.5-8

2 10

1.8 Chemical Composition

Not Available

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

Zinnwaldite and Pezzottaite Chemical Formula

While comparing Zinnwaldite and Pezzottaite 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 Zinnwaldite and Pezzottaite chemical formula.

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

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Zinnwaldite and Pezzottaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zinnwaldite and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zinnwaldite and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Zinnwaldite is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.