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Plumbogummite
Plumbogummite

Hollandite
Hollandite



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Plumbogummite
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Hollandite

Plumbogummite and Hollandite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.014
5.05
1.5 Fracture
Uneven, Conchoidal
Brittle, Metallic
1.6 Cleavage
None
Distinct / Good, Prismatic
1.7 Mohs Hardness
4-5
4-6
1.8 Chemical Composition
Not Available
Ba(Mn++++,Mn++)8O16

Plumbogummite and Hollandite Chemical Formula

While comparing Plumbogummite 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 Plumbogummite and Hollandite chemical formula.

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  • Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

Plumbogummite and Hollandite Specific Gravity

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