This is an elongated solid silver nugget, massing 290 grams (9.35 troy ounces), and complete all around 360 degrees. It is actually very sculptural, and not so ugly as you might expect! While gold readily forms nuggets, as does platinum and other metals, for some reasons of chemistry this rarely happens with pure silver. A nugget of this size is in fact extremely uncommon! And, to make it more rare yet, it is from the old Cobalt silver deposits of Canada. A fine and odd addition to any silver or Canada suite. ex UNIVERSITY OF ARIZONA MUSEUM COLLECTION.