Hollandite and Pezzottaite Physical Properties

Hollandite

Pezzottaite

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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

5.052.90-3.14

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

Distinct / Good, Prismatic

Imperfect; basal

1.7 Mohs Hardness

4-67.5-8

2 10

1.8 Chemical Composition

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

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

Hollandite and Pezzottaite Chemical Formula

While comparing Hollandite and Pezzottaite 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 Hollandite and Pezzottaite chemical formula.

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

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Hollandite and Pezzottaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hollandite and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.