Kyanite and Hollandite Physical Properties

Kyanite

Hollandite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.53-3.655.05

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

Brittle, Metallic

1.6 Cleavage

[100] perfect [010] imperfect with 79° angle between

Distinct / Good, Prismatic

1.7 Mohs Hardness

4-74-6

2 10

1.8 Chemical Composition

Not Available

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

Kyanite and Hollandite Chemical Formula

While comparing Kyanite 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 Kyanite and Hollandite chemical formula.

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

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Kyanite and Hollandite Specific Gravity

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