Diamond- History,Properties,Uses and Facts - WorldOfChemicals

An Ultimate Guide on Diamond


History and Etymology:

In 4th century BC, diamonds were first discovered and mined in India. Diamond in India had been known for at least 3000 years but 6000 years most likely.

Diamonds popularity got increased since 19th century after its increase in supply, improved polishing and cutting techniques.

In 327 BC, Alexander brought first diamond to Europe from India.

French scientist Antoine Lavoisier in 1772 showed that the only product of the combustion of Diamond is Carbon dioxides, hence proving that diamond compose of only carbon. Later on chemist Smithson Tennant in 1797, repeated and expanded the experiment and demonstrated that diamond and graphite releases same amount of gas.

Diamond today is used majorly for adornment as gemstones and for cutting hard materials as industrial abrasives.

Diamond got its name from ancient Greek word adamas which meant “unbreakable”.

Properties of Diamond:

  • Hardness: Diamond is the hardest material known as per both Mohs and Vickers scale.

  • Electrical conductivity: Most diamonds are electrical insulators. Some blue colour diamonds are natural semiconductors.

  • Surface property: Diamonds are lipophilic and hydrophobic means that the surface of the diamond cannot be wet by water but can get wet easily by oil.

  • Chemical stability: Diamonds are not much reactive. In room temperatures diamonds does not reacts with any chemical reagents.

  • Corrosion: Diamond is corrosion resistant.

  • Diamond has low coefficient of friction and low thermal expansion coefficient.

Diamonds unusual uses:

Apart from the use of Diamond as jewellery, it has many unusual and unknown uses also like in:

  • Domes of Speakers: Diamonds are actually believed to enhance quality speakers’ performance, as they are very rigid and vibrate briskly when turned into thin domes.

  • Antidote: In many places diamonds are used as an antidote for poisons or diseases. But there is no scientific evidence backing this.

  • Windows: Diamond windows are made out of thin diamond membranes which are used in covering openings in stuffs like vacuum chambers, x-ray machines and lasers.

  • Heat sinks: In an electronic system, heat sink is a component that cools the device by dissipating heat into surroundings. Due to the presence of high thermal conductivity property diamonds are god heat conductors and because of this property only they are used in heat sinks.

  • Future uses: In the future, diamond might be used in surgical tools, medical devices and in human joints.

Diamond facts:

  • Diamonds are said to be the birthstone of people born in April.

  • Diamonds are made up of single element-Carbon and are the hardest element found on earth.

  • The only thing that can cut diamond is diamonds as diamond are very hard natural element.

  • At the time of middle age, diamonds were believed to have healing properties.

  • In many ancient cultures, it was believed that diamonds gives courage and strength to the wearer during battle.

  • The largest diamond discovered was called as Cullinan Diamond which weighed 1.33 pounds/ 3106 carats.

  • 80 percent of the diamond discovered is not suitable for jewellery.

  • The most amazing fact of diamond is that scientists have discovered a planet which is one third diamond and even more amazing fact is that they have also discovered a star named Lucy which approximately a diamond of 10 billion trillion trillion carats.

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