Pezzottaite and Bustamite Physical Properties

Pezzottaite

Bustamite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Partly soluble in HCl.

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.143.32-3.43

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Imperfect; basal

{100} perfect; {110} and {1 1 0} good; {010} poor

1.7 Mohs Hardness

7.5-85.5-6

2 10

1.8 Chemical Composition

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

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pezzottaite and Bustamite Chemical Formula

While comparing Pezzottaite and Bustamite 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 Bustamite chemical formula.

Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Pezzottaite and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pezzottaite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.