Hemimorphite and Brookite Physical Properties

Hemimorphite

Brookite

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

3.30-3.503.87-4.14

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann, Conchoidal

Subconchoidal, Conchoidal

Cleavage

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

Poor on {120}, in traces on {001}

Mohs Hardness

55.5-6

2 10

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Chemical Composition

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

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Hemimorphite and Brookite Chemical Formula

While comparing Hemimorphite and Brookite 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 Brookite 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 Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hemimorphite and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hemimorphite and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hemimorphite and Brookite Optical Properties during the identification of gemstone. Specific gravity of Hemimorphite is 3.87-4.14 whereas that of Brookite is 3.87-4.14.