This pendant is one-of-a-kind. Rhyolite is a relatively common volcanic rock. The stone is set in Sterling Silver and complemented by Peridot. Pendant has Fleur-de-lis design pierced and engraved on the back. Fleur-de-lis represents a major theme in Scouting: the outdoors and wilderness. Some modern usage of the fleur-de-lis reflects "the continuing presence of heraldry in everyday life", As a religious symbol it may represent the Trinity. The bail's inner diameter is about 5 mm and fits my handcrafted Byzantine Chain with Peridot clasp perfectly (sold Separate).