Pezzottaite and Diaspore Physical Properties

Pezzottaite

Diaspore

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1 Physical Properties

1.1 Tenacity

Not Available

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.143.30-3.40

1 7.18

1.5 Fracture

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

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Imperfect; basal

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

7.5-86.5-7

2 10

1.8 Chemical Composition

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

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Pezzottaite and Diaspore Chemical Formula

While comparing Pezzottaite and Diaspore 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 Diaspore chemical formula.

Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Pezzottaite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pezzottaite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.