Rare gemstones hold a special allure, not just for their beauty but for their scarcity. Found only in specific regions around the world, these stones are prized by collectors and jewelers alike.

The rarest gemstone in the world is considered to be a transparent mineral of reddish-orange color, of which only one specimen has been found throughout history. It is regarded as a sensation for ...

A team of archaeologists has discovered a rare rock used to make tools in the Stone Age. The "polishing boulder", found in the Valley of the Stones near Dorchester, would have been used to make ...

A rare poster promoting one of the Rolling Stones' earliest concerts that was found in a loft has sold for £15,000. The original poster advertised a show at Bristol's Colston Hall in 1964 during ...

Only about 20 such "bildstein" (picture stones) have been discovered along the Baltic coast of Germany and Poland. These medieval artifacts typically show human figures with distinguishing ...

It’s where they come from — the island of Ailsa Craig off of Scotland — that makes them so rare. The island is one of the few places in the world that make the Olympic-grade stones.

Having all the rare stones make their owner the most powerful being in the universe, allowing him or her to shape it as they see fit. In the case of Marvel Studios’ big baddie, Thanos ...

The rover discovered rare sulphur-rich stones, indicating potential signs of past microbial life. Curiosity is now heading to the boxwork formation, a region that may hold further insights into ...