Hollandite and Aegirine Physical Properties

Hollandite

Aegirine

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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

5.053.50-3.60

1 7.18

1.5 Fracture

Brittle, Metallic

Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Distinct / Good, Prismatic

Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}

1.7 Mohs Hardness

4-66

2 10

1.8 Chemical Composition

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

(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.

Hollandite and Aegirine Chemical Formula

While comparing Hollandite and Aegirine 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 Aegirine chemical formula.

Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
Chemical formula of Aegirine- (Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.

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Hollandite and Aegirine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hollandite and Aegirine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Aegirine Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 3.50-3.60 whereas that of Aegirine is 3.50-3.60.