Jenny Shanker, an instructor at Temple's Tyler School of Art, has been traveling across the state to collect an unusual raw material for her latest work: Marcellus Shale. Shanker is using the rocks, known as a source for natural gas extracted in a controversial process known as fracking, to sculpt cups that will be used for a symposium on the Marcellus Shale formation at Temple Gallery as well as the gallery's weekly coffee club. "I wanted to use a form from an everyday object," she said. "I wanted it to raise some of the questions that fracking does but on a more immediate, personal level."