Hemimorphite and Hollandite Physical Properties

Hemimorphite

Hollandite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.505.05

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

Brittle, Metallic

1.6 Cleavage

Perfect on {110}, poor on {101}, {001} rare

Distinct / Good, Prismatic

1.7 Mohs Hardness

54-6

2 10

1.8 Chemical Composition

Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Hemimorphite and Hollandite Chemical Formula

While comparing Hemimorphite 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 Hemimorphite and Hollandite chemical formula.

Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

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Hemimorphite and Hollandite Specific Gravity

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