Pezzottaite and Realgar Physical Properties

Pezzottaite

Realgar

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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

2.90-3.143.56

1 7.18

1.5 Fracture

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

(e.g. graphite).

1.6 Cleavage

Imperfect; basal

{010} Good

1.7 Mohs Hardness

7.5-8Not Available

2 10

1.8 Chemical Composition

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

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

Pezzottaite and Realgar Chemical Formula

While comparing Pezzottaite and Realgar 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 Realgar chemical formula.

Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

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Pezzottaite and Realgar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pezzottaite and Realgar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Realgar Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 3.56 whereas that of Realgar is 3.56.