Pezzottaite and Hollandite Physical Properties

Pezzottaite

Hollandite

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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

2.90-3.145.05

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

Imperfect; basal

Distinct / Good, Prismatic

1.7 Mohs Hardness

7.5-84-6

2 10

1.8 Chemical Composition

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

Ba(Mn++++,Mn++)8O16

Pezzottaite and Hollandite Chemical Formula

While comparing Pezzottaite and Hollandite 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 Hollandite chemical formula.

Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

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Pezzottaite and Hollandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pezzottaite and Hollandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Hollandite Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 5.05 whereas that of Hollandite is 5.05.