Diamonds are crystals of pure carbon that form under crushing pressures and intense heat. They mostly form in the Earth's mantle, the layer beneath the crust or surface layer, at a depth of about 150km. From mantle to crust. Diamonds that were formed deep inside the earth can be mined close to the surface.
Thanks to Tracy Hall we can mimic the natural process in a lab cultivating a totally man-made or synthetic diamond. Since the diamond is an allotrope of pure carbon so it can be created with any carbon providing source even ashes of the passed one.
There are many ways to commemorate the passing away of the loved ones. This is a new technique where the ashes of the dead person is made into a diamond.
Our bodies are 18 % percent carbon so an average 80 kg man produce enough ashes to make a 0.2-gram diamond.To do this, the ashes are heated to over 2,760 degrees Celsius (5,000 degrees Fahrenheit) in a heat-proof crucible. This works to oxidise all of the elements within the ashes, other than the carbon. The carbon is then heated for a number of weeks to turn it into graphite, which is then pressed with a metal catalyst and a diamond-seed crystal. This step requires temperatures of around 1,371 degrees Celsius (2,500 degrees Fahrenheit), along with extremely high pressures, and needs several weeks to convert the graphite into a rough crystal. This crystal can then be cut to specifi cation and presented as desired. The finished diamond’s colour is typically yellow or orange, depending on the amount of other trace elements within the original ashes. This can be changed by further enhancement techniques.
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