Zentron Crystal Collection: Natural Rough Girasol Opal, Includes Velvet Bag - Large 1" Pieces (1 Pound)

Opal is found in most colors of the color wheel. Its internal chemical structure causes light to refract off of it in different ways. Opals can range from opaque to semitransparent, which is another result of its structure. Many superstitions have surrounded opal throughout history. In medieval times, some people believed it would make you invisible. Opal and tourmaline are the birthstones of October. Girasol Opal is also known as Girasol Quartz, Milky Quartz, water opal, Star quartz, and moon opal. The stone can be found from a clear color to a light blue tint.