"Sleeping Beauty turquoise", mine near Globe, Arizona. It is the desirable robin's egg blue, without matrix, highly desirable for Zuni jewelry, and by other jewelers around the world.
A rarity and the showpiece of my collection of fossiles and gemstones. It's shimmering extremely colorful because it's wet. Diameter 11 cm.Ammonites, as they pertain specifically to the order Ammonitida, are an extinct group of marine animals belonging to the cephalopod subclass Ammonoidea. They are excellent index fossils, and it is often possible to link the rock layer in which they are found to specific geological time periods.