That's right, you're not looking at a fossilized egg, but rather an opal, or in technical terms, a hydrated form of silica (water content varies from 3% - 21%). The internal structure of precious opal makes it diffract light; depending on the conditions in which it formed, it can take on many colors. Precious opal ranges from clear through white, gray, red, orange, yellow, green, blue, magenta, rose, pink, slate, olive, brown, and black. Click here to view the first image in today's viral picture gallery. Continue reading for a viral video of a mind-blowing pyro board.