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).
Where diamonds are found in the United States - Wyoming. Diamond Kimberlite pipes have been found in Wyoming, near the Colorado-Wyoming state line area referred to as the Aultman, Ferris and Schaffer kimberlites. The Herkimer Diamond Mine and the Ace Of Diamonds Mine - New York.
1 Diamonds are formed deep within the Earth: between 100 km and 200 km below the surface. 2  The temperatures are about 900 - 1300 C in the part of the Earth's mantle where diamonds form. 3  The pressure is between 45 - 60 kilobars.