Mine rough,all natural untreated bastnasite,, some say bastnaesite,,,a rare carbonate-fluoride mineral and is one of the largest sources of cerium and other rare earth elements.This particular bastnasite lot comes from the Zagi Mountains, Pakistan  and is a crystal mixed grade cab/facet,,picture taken dry with and without back-light.Shipping in the US mainland will be FREE by USPS first class,all other shipping locations worldwide, where allowed by law,will be $33.99 USPS priority.