Pezzottaite and Cryolite Physical Properties

Pezzottaite

Cryolite

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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

2.90-3.142.97

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

Imperfect; basal

None observed

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.

Na 3AlF 6Ulrich Henn and Claudio C.

Pezzottaite and Cryolite Chemical Formula

While comparing Pezzottaite and Cryolite 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 Cryolite chemical formula.

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

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Pezzottaite and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pezzottaite and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 2.97 whereas that of Cryolite is 2.97.