Show 4: Paul Hoskin "Ellensburg Blue Agates"
Former Central Washington University geology professor Paul Hoskin discusses his research with our famous blue agates known the world over. Mineralogist Paul breaks down the formation of the agates - and comments on why our agates are blue. Paul also chats about his teaching of mineralogy using CWU Geology's Xray Diffractometer, his work in the North Cascades, and his upcoming project in Turkey near the Black Sea. Taped on March 3, 2006.