FUN FACTS ABOUT OPALS
■ There are several claims about the origin of the word "Opal." One is that the name comes from the Sanskrit word "Upala," which means "valuable stone." Some people believe that the name "opal" comes from the Latin term "opalus," which means precious stone; others believe it originates from the Sanskrit term "úpala," which means valuable stone.
■ Other minor sources of natural opals include Brazil, Mexico, Hungary, the United States, Peru, Ethiopia, Nicaragua, and other countries.
■ The play of color you see in opal crystals is due to millions of tiny silica spheres of different sizes; these tiny spheres refract light and cause beautiful spectral colors.
■ Opals can be almost any color; however, the most common opals are white, green, or translucent.
■ Boulder opal is the only type of opal that contains all the colors of the rainbow within one stone and can cost up to $3000 per carat.
■ The Virgin Rainbow is one of the world's rarest and most expensive opals. It glows in the dark. As it gets darker around the opal, the opal appears ever more vibrant. It's valued at over $1 million and owned by the South Australian Museum in Adelaide.
■ The most expensive opal is the "Olympic Australis," weighing 17,250 carats. This massive opal gem comes from Coober Pedy in South Australia and is valued at $1.7 million USD., making it the most expensive opal in Australian history.
We hope you enjoyed these fun facts about opal!