Glaucophane and Hollandite Physical Properties

Glaucophane

Hollandite

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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

3-3.155.05

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Brittle, Metallic

1.6 Cleavage

Good on [110] and on [001]

Distinct / Good, Prismatic

1.7 Mohs Hardness

6.0-6.54-6

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

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

Glaucophane and Hollandite Chemical Formula

While comparing Glaucophane 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 Glaucophane and Hollandite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

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Glaucophane and Hollandite Specific Gravity

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