Hollandite and Cordierite Iolite Physical Properties

Hollandite

Cordierite Iolite

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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

5.052.56-2.66

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

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.

Compare Grey Gemstones

Hollandite Vs Falcons Eye

Hollandite Vs Musgravite

Hollandite Vs Larvikite

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.