black opal Directory References Discover 9 of the World’s Deadliest Snakes Timeline of the 2000s Water Fluoridation: Just the Facts 7 of the World’s Deadliest Plants Who Invented the Internet? Is Cinco de Mayo Mexico's Independence Day? 7 Deadliest Weapons in History Contents black opal mineral Ask Our Chatbot a Question Ask Our Chatbot a Question Learn about this topic in these articles:characteristics In opalBlack opal, with a very dark gray or blue to black body colour, is particularly rare and highly prized. White opal, with light body colours, and fire opal, characterized by yellow, orange, or red body colour, are much more common. Read More
