Vivianite and Malachite Physical Properties

Vivianite

Malachite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.64-2.703.25-4.10

1 7.18

1.5 Fracture

(e.g. graphite).

Conchoidal, Conchoidal, Gemstones (2009), Uneven

1.6 Cleavage

{010} Perfect

Perfect on { 2 01} fair on {010}

1.7 Mohs Hardness

Not Available3.5-4

2 10

1.8 Chemical Composition

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

Cu₂CO₃(OH)₂

Vivianite and Malachite Chemical Formula

While comparing Vivianite and Malachite 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 Vivianite and Malachite chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Malachite- Cu₂CO₃(OH)₂

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Vivianite and Malachite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Malachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Malachite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 3.25-4.10 whereas that of Malachite is 3.25-4.10.