Hollandite and Riebeckite Physical Properties

Hollandite

Riebeckite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.053.28-3.44

1 7.18

1.5 Fracture

Brittle, Metallic

Uneven, Splintery, Brittle

1.6 Cleavage

Distinct / Good, Prismatic

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

1.7 Mohs Hardness

4-65.0-6.0

2 10

1.8 Chemical Composition

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

Not Available

Hollandite and Riebeckite Chemical Formula

While comparing Hollandite and Riebeckite 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 Riebeckite chemical formula.

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

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Hollandite and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hollandite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.