Hollandite and Thulite Physical Properties

Hollandite

Thulite

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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

5.053.1

1 7.18

1.5 Fracture

Brittle, Metallic

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Distinct / Good, Prismatic

Perfect {010} imperfect {100}

1.7 Mohs Hardness

4-66-7

2 10

1.8 Chemical Composition

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

Ca₂Al₃(SiO₄)₃(OH)

Hollandite and Thulite Chemical Formula

While comparing Hollandite and Thulite 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 Thulite chemical formula.

Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)

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Hollandite and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hollandite and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Thulite Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 3.1 whereas that of Thulite is 3.1.