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Hollandite
Hollandite

Cordierite Iolite
Cordierite Iolite



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Hollandite
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Cordierite Iolite

Hollandite and Cordierite Iolite 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
5.052.56-2.66
Amber
1 7.18
1.5 Fracture
Brittle, Metallic
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
Distinct / Good, Prismatic
Not Available
1.7 Mohs Hardness
4-67-7.5
Amber
2 10
1.8 Chemical Composition
Ba(Mn++++,Mn++)8O16
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Hollandite and Cordierite Iolite Chemical Formula

While comparing Hollandite and Cordierite Iolite 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 Cordierite Iolite chemical formula.

  • Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
  • Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Hollandite and Cordierite Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hollandite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.