The Jeffrey Mine, now closed, is well known for its beautiful specimens of both grossular garnet and vesuvianite. This particular specimen is an exquisite, world class, competition quality, thumbnail. It is well formed, translucent, lustrous, with a rich, emerald green color. These deep green crystals are the rarest of all the vesuvianite styles, and gemmy, elongate ones like this the most so. It is SO vivid and unusual a green, most people would assume it is a tsavorite GARNET or a funny tourmaline, before guessing it might be a vesuvianite.