Riebeckite and Hemimorphite Physical Properties

Riebeckite

Hemimorphite

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

3.28-3.443.30-3.50

1 7.18

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Fracture

Uneven, Splintery

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

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

Mohs Hardness

5.0-6.05

2 10

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Chemical Composition

Na2Fe2+3Fe3+2Si8O22(OH)2

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

Riebeckite and Hemimorphite Chemical Formula

While comparing Riebeckite and Hemimorphite 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 Riebeckite and Hemimorphite chemical formula.

Chemical formula of Riebeckite- Na2Fe2+3Fe3+2Si8O22(OH)2
Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Riebeckite Vs Lawsonite

Riebeckite and Hemimorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Riebeckite and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riebeckite and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Riebeckite is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.