Opals, associated with the zodiac sign Libra, are known for their emotional healing and creativity-boosting powers. Artists often use them to overcome creative blocks, while spiritual practitioners ...

An advertisement on eBay earlier this month screamed the news: “WOW RARE FIND…TRUE NEVADA BLACK PRECIOUS OPAL…THE ONE YOU HAVE BEEN WAITING FOR…YOU WILL NOT BE DISAPPOINTED.” The bidding started at ...

Geologists were astounded to discover a rich, natural opal deposit almost 9,800 feet above sea level. The villagers in Wollo, Ethiopia, made the discovery almost 9,800 feet above sea level. Their ...

Following is a transcript of the video. Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. But mining black opal isn't easy.

A research team using new methods to analyze data from NASA's Curiosity, a rover operating on Mars since 2012, was able to independently verify that fractures in the bedrock contained opal, on Earth a ...

The federal government will soon ban the export of rough opal, a precious gemstone; a move aimed at persuading exporters to add value and hence increase revenues, according to senior officials at the ...