Thermoplastics, in basic terms, are melt-processable plastics (materials that are processed with heat). When enough heat is added to bring the temperature of the plastic above its melt point, the plastic liquefies (softens enough to be processed).
In the U.S., diamonds have been found in Arkansas, Colorado, Wyoming, and Montana. In 2004, the discovery of a microscopic diamond in the U.S. led to the January 2008 bulk-sampling of kimberlite pipes in a remote part of Montana.
A natural chocolate diamond can be found in Africa, Russia and Australia: they are found most commonly in Australian diamond mines. The Australian diamond mine that yields t â¦ he most chocolate diamonds is Argyle Diamond Mine in the remote region of Australia's north west. 11 people found this useful.