Hemimorphite and Hibonite Physical Properties

Hemimorphite

Hibonite

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

3.30-3.503.84

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann, Conchoidal

Subconchoidal, Conchoidal

Cleavage

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

{0001} good, {10 1 0} parting

Mohs Hardness

57.5-8

2 10

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Chemical Composition

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

(Ca,Ce)(Al,Ti,Mg)12O19

Hemimorphite and Hibonite Chemical Formula

While comparing Hemimorphite and Hibonite 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 Hibonite 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 Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

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Hemimorphite and Hibonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hemimorphite and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hemimorphite and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Hemimorphite is 3.84 whereas that of Hibonite is 3.84.