Diamonds take millions of years to form within the Earth's mantle, but now scientists are trying to produce them synthetically.
- Diamonds take a long time to form in the Earth's mantle.
- They are made only of carbon, and scientists have tried to produce them in the lab.
- The HTHP process simulates the high temperature and high pressure found in the Earth's mantle to produce small diamonds.
- The CVD, or Chemical Vapor Deposition, method is a more successful method. It uses diamond "seeds" - hydrogen and methane - to produce carbon atoms that latch onto the seed.
Diamonds are forever, or more precisely they take a long time to form deep within the Earth's mantle.
But as diamond is just carbon, scientists have been working for years to find a way to recreate nature's most beautiful mineral...
Diamonds have been created in labs using the HPHT method.
HPHT - ...
Please log in to view and download the complete transcript.