Hemimorphite and Benitoite Physical Properties

Hemimorphite

Benitoite

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

Insoluble: HCl

Durability

Specific Gravity

3.30-3.503.61-3.68

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann, Conchoidal

Conchoidal

Cleavage

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

[10 1 1] poor

Mohs Hardness

56-6.5

2 10

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Chemical Composition

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

BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Hemimorphite and Benitoite Chemical Formula

While comparing Hemimorphite and Benitoite 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 Benitoite 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 Benitoite- BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hemimorphite and Benitoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hemimorphite and Benitoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hemimorphite and Benitoite Optical Properties during the identification of gemstone. Specific gravity of Hemimorphite is 3.61-3.68 whereas that of Benitoite is 3.61-3.68.