ALBUQUERQUE, N.M. (KRQE) — It’s a “hydrated phosphate of copper,” but you may just know it as turquoise. The blue-green mineral widely regarded as a gemstone has significant deposits across the world, ...

The Smithsonian's National Museum of Natural History acquired one of the world's rarest gemstones.Natural red diamonds are some of the rarest gems on Earth, and the Winston Red Diamond is exceptional ...

A Carthage man may have unearthed one of the rarest gemstones in the world — not in a mine, but in his own front yard. Robert Lewis Jr. says he found an unusual black rock just steps from his home ...

When the boy's mother showed the stone to geologist Patrick Roycroft, he revealed that it was a rare form of quartz.

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Jun 26, 2025, 02:26pm EDT Jun 27, 2025, 05:34am EDT A medieval ...

Aaron Celestian isn’t a big fan of “Ocean’s 8.” “I have a hard time watching those movies because they’re always robbing museums,” he said with a laugh, standing amid a vault filled with some of the ...

Imagine this, a young gemologist frowned as she inspected a ruby. “Without documentation, this could be from anywhere,” she sighed, articulating a frustration that haunts the global gemstone market: ...

NAIROBI, Kenya, Nov. 03, 2025 (GLOBE NEWSWIRE) -- Africa's leading authority on rare colored gemstones, The Rare Gemstone Company, unveils one of its most exceptional pieces in its five-decade history ...

Across the hills of Kenya and Tanzania, two gemstones capture the continent’s natural brilliance and enduring mystique: Tanzanite and Tsavorite. Both discovered within a few years of each other in the ...

CARTHAGE, Texas -- A Carthage man may have unearthed one of the world’s rarest gemstones not in a mine, but in his own front yard. Robert Lewis Jr. said in 2016, he found an unusual black rock just ...