In Zenz' first book (which sadly is no longer available), he says, "Many collectors consider the agates from the Estacion Ojo Laguna area, located in the state of Chihuahua, to be the best of their kind in the whole world." I agree! Just look at the exquisite fortifications in these little stones with their beautiful shading. There are several new pieces this time with Lagunas, you might want to look at them all!