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Hollandite
Hollandite

Vivianite
Vivianite



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Hollandite
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Hollandite and Vivianite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
5.05
2.64-2.70
1.5 Fracture
Brittle, Metallic
(e.g. graphite).
1.6 Cleavage
Distinct / Good, Prismatic
{010} Perfect
1.7 Mohs Hardness
4-6
Not Available
1.8 Chemical Composition
Ba(Mn++++,Mn++)8O16
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Hollandite and Vivianite Chemical Formula

While comparing Hollandite and Vivianite 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 Vivianite chemical formula.

  • Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
  • Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Hollandite and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hollandite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.