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Sunday, July 15, 2018

DID YOU KNOW???

 Diamond:

Around 26,000 kilograms (57,000 lb) of diamonds are mined around the world every year.

The word diamond comes from the Greek word meaning unbreakable.

Diamond is an allotrope (different form) of carbon. The carbon atoms in diamonds are arranged in a strong, tetrahedral structure.

 Diamond is the hardest natural material known and is often used for industrial cutting and polishing tools. Di
amond has a hardness of 10 on Mohs scale of mineral hardness.


 Under the normal pressures and temperatures we experience on the Earth's surface, diamonds are actually thermodynamically unstable, slowly transforming into graphite. Yes, you read that correctly, diamonds are indeed turning into graphite, but thankfully for all those diamond owners out there it's a process that is far too slow for humans to notice.


Diamonds are valued according to their cut, color, carat and clarity.

First Famous Diamond : The Koh-i-Noor diamond was found in India and once thought of as the largest diamond in the world. It is now part of the British Crown Jewels in the Tower of London.

Second Famous Diamond : The 45.52 carat Hope Diamond appears blue because of boron in its crystal structure and is famous for supposedly being cursed.

Third Famous Diamond : Discovered in the Kimberley Mine in South Africa, the Tiffany Yellow Diamond weighed an amazing 287.42 carats (57.484 g) when discovered. It was later sold to a New York jeweler named Charles Tiffany who had it cut into a cushion shape of 128.54 carats (25.708 g) with 90 facets to show off its beauty.

Fouth Famous Diamond : After being originally found by a slave in an Indian mine, the now 140.64 carat (28.1 g) Regent Diamond has been through an epic history including an English sea merchant and French royalty. It is now on display at the Louvre, where it has been on display since 1887.

The technology for synthetic diamonds was researched in the 1940's and the first synthetically created diamond was produced in the 1950's.

There are a number of techniques for producing synthetic diamonds, these include high-pressure high-temperature synthesis, chemical vapor deposition and detonation synthesis (literally blowing up carbon with explosives to create extremely small diamond grains).

The synthesized material known as cubic zirconia is a crystalline form of zirconium dioxide (ZrO2). It is at times in competition with diamond because as well as being hard, optically flawless and colorless, it is also durable and cheap.




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