Here is a nice blue gray type of Graveyard Plume Agate from Oregon. It is a flat cab and polished on both sides. Each side is unique and ideal for a wire setting in my opinion. One side has a well defined plume while the other side has a nice fortification zone.
Visit my Sold cabochon Gallery to see past opals I have cut. You will find other examples of materials, shapes, sizes, colors, and in general see my work there. Some stones date back over 15 years in there. I don’t show everything I cut, just the ones I really liked over the years. Please let me know if you have any questions about those materials.
Its also important to visit your local rockclub if you have one near by. Its a
great place to start if you are new to gems and minerals. Thank you.