Hemimorphite and Poldervaartite Physical Properties

Hemimorphite

Poldervaartite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.502.91

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

Handbook of mineralogy (2001)

1.6 Cleavage

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

None

1.7 Mohs Hardness

5Not Available

2 10

1.8 Chemical Composition

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

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Hemimorphite and Poldervaartite Chemical Formula

While comparing Hemimorphite and Poldervaartite 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 Poldervaartite 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 Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

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Hemimorphite and Poldervaartite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hemimorphite and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hemimorphite and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Hemimorphite is 2.91 whereas that of Poldervaartite is 2.91.