Zoisite and Pezzottaite Physical Properties

Zoisite

Pezzottaite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.20-3.502.90-3.14

1 7.18

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Fracture

Uneven, Conchoidal, Even

Conchoidal, Uneven

Cleavage

Perfect {010} imperfect {100}

Imperfect; basal

Mohs Hardness

6-77.5-8

2 10

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Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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

Zoisite and Pezzottaite Chemical Formula

While comparing Zoisite 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 Zoisite and Pezzottaite chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

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Zoisite and Pezzottaite Specific Gravity

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