PENDLETON — Marie Pratuch of Pendleton is a contemporary ceramicist who creates classic and rustic shapes with a sense of delicacy and ingenuity to her craft. Pratuch during a recent creative session grabbed a hunk of wet clay and slammed it on the pottery wheel. She wrapped her hands firmly around the muddy gray clay, spun the wheel and motioned it to remain centered. “This is the hard part. I might have to stop talking,” Pratuch said. “This is a little firmer than I usually work with, so sometimes I have to hold my breath. This is the hardest part, I think, is throwing and centering.” Marie Pratuch concentrates on…