Little Gem Girl Glow in The Dark Silver Glass Mexican Opal Dragons Breath Amulet Necklace 18 Inches This necklace is exquisite - the main focal point is the 18x25mm red blue glass cabochon. It has been set in an ornate silver oval Victorian style setting and comes with a matching 18 inch traditional style link chain with lobster clasp. GLOWS IN THE DARK! Use the included UV flashlight to "charge" the glow. See below for further information. Theme: Fairy Tale, Fantasy, Once Upon a Time, Role Play, Theme Weddings, etc! Mexican Fire Opal Dragon's Breath glass cabachon - Colors shift from lightening strikes of blues to scarlet red depending on how the light hits it The flashes of color from within the stone are known as the "breath" from which the name is derived. Mexican Opals were first used in jewelry in the early 1900s to simulate fire/jelly opals. Highly collectible and rare  this lovely stone is a certain conversation piece and will become a cherished favorite. Handcrafted in the USA by Little Gem Girl - a small handmade business!