Lazulite and Malachite Physical Properties

Lazulite

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

3.04-3.173.25-4.10

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones of the world (2001) More from other references

Conchoidal, Conchoidal, Gemstones (2009), Uneven

1.6 Cleavage

{001} Indistinct, {???} Indistinct

Perfect on { 2 01} fair on {010}

1.7 Mohs Hardness

5.53.5-4

2 10

1.8 Chemical Composition

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Cu₂CO₃(OH)₂

Lazulite and Malachite Chemical Formula

While comparing Lazulite 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 Lazulite and Malachite chemical formula.

Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Chemical formula of Malachite- Cu₂CO₃(OH)₂

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Lazulite and Malachite Specific Gravity

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