Hemimorphite and Variscite Physical Properties

Hemimorphite

Variscite

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

3.30-3.502.42-2.58

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann, Conchoidal

Conchoidal, Splintery, ConchoidalWalter Schumann

Cleavage

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

[010] perfect

Mohs Hardness

54-5

2 10

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Chemical Composition

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

AlPO₄ · 2(H₂O)

Hemimorphite and Variscite Chemical Formula

While comparing Hemimorphite and Variscite 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 Variscite 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 Variscite- AlPO₄ · 2(H₂O)

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Hemimorphite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hemimorphite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hemimorphite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Hemimorphite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.