Hemimorphite and Vivianite Physical Properties

Hemimorphite

Vivianite

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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

3.30-3.502.64-2.70

1 7.18

1.5 Fracture

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

(e.g. graphite).

1.6 Cleavage

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

{010} Perfect

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

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Hemimorphite and Vivianite Chemical Formula

While comparing Hemimorphite and Vivianite 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 Vivianite 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 Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Compare Green Gemstones

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Hemimorphite Vs Kyanite Cyprine

Hemimorphite Vs Kornerupine

Hemimorphite and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hemimorphite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hemimorphite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Hemimorphite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.