Pennsylvania Eastern Region Abstract Competition. The Wright Center for Graduate Medical Education (Formerly Scranton Temple Residency Program) in Scranton, PA will host the ACP PA Eastern Regional Meeting on October 6, 2012 at The Commonwealth Medical College (TCMC) in Scranton. The competition is open to all residents in the Pennsylvania Eastern Region.
Diamonds are formed as an allotrope of the element carbon, at depths greater than 90 miles. The pressure and heat at this depth is critical to the formation of the diamonds thâ¦at are mined at the surface today. At crustal pressures, the stable form of carbon is the allotrope graphite.
A diamond is a crystalline mineral form of the element carbon.  Igneous, metamorphic, and sedimentary are descriptive terms used to  classify types of rocks, not minerals su â¦ ch as diamond.     Diamond is accepted as a valid mineral by the International  Mineralogy Association. Sedimentary rocks are formed by the lithification of the sediments  which accumulate from the erosion of â¦ preexisting rocks of all  types. They also included rocks form from animal and plant remains.   Metamorphic rocks are formed when sedimentary or igneous rocks are  heated and or squashed. Answered.