Malachite and Vivianite Physical Properties

Malachite

Vivianite

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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

3.25-4.102.64-2.70

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

(e.g. graphite).

1.6 Cleavage

Perfect on { 2 01} fair on {010}

{010} Perfect

1.7 Mohs Hardness

3.5-4Not Available

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

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

Malachite and Vivianite Chemical Formula

While comparing Malachite 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 Malachite and Vivianite chemical formula.

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

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Malachite and Vivianite Specific Gravity

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