Villagers in Ethiopia uncover rare black opal nearly 10,000 ft high, reshaping the global gem market with vibrant stones.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." How does a jeweler find the best way to showcase a selection of rare stones? For Monica Rich Kosann, ...

The villagers in Wollo, Ethiopia, made the discovery almost 9,800 feet above sea level. Their tunnels follow a single opal ...

The Opal is known as the Queen of Gems. Learn about its unique play of colours, Australian origins, and fascinating facts.

Scientists have found opal-like crystals in the Tagish Lake meteorite, which fell to Earth in Canada in 2000. This is the first extraterrestrial discovery of these unusual crystals, which may have ...

The gemstone opal could be manufactured synthetically copying a technique employed by a beetle to control the appearance of its outer shell. Researchers from the Department of Zoology at the ...

What is an opal and what does it mean spiritually for the person who wears one? The name opal crystal is derived from the Latin word opalus, which means precious stone. Precious opals are the most ...

After dropping an earthy renovation of Merrell’s Hydro Moc this summer, LA-based label Advisory Board Crystals (Abc.) has returned with its newest footwear offering: an opal gemstone-filled hiking ...

The illustrations at the top (steps A through D) depict the creation of 3-D "photonic crystals" to improve the efficiency of thin-film solar cells, a technology that could bring low-cost solar energy.

How does a jeweler find the best way to showcase a selection of rare stones? For Monica Rich Kosann, whose high jewelry collection, The Jewels of Nature, uses rare Australian black and crystal opals ...