The world's rarest gemstone is made of kyawthuite ... Investigations revealed that it likely formed deep underground in a ...

Highlights: Axinite is considered a rare mineral from the borosilicate ... The fire opal is rarer than other types of opal, especially in gem-quality stones. While the background of a fire opal ...

Large crystals found in geodes and other rocks are relatively rare. Pink ChalcedonyA pink chalcedony shows off its beauty. Chalcedonies include many types of cryptocrystalline quartz gems and ...

The “gem” of an ammonite dates back 71 million years, and comes with a curious coating of ammolite, giving it a dazzling rainbow iridescence. “This extraordinary piece [weighs] 24 kilograms ...

The Rare Gemstone Company has been a leading name in the rare gemstone industry for half a century, serving discerning clients with the most exquisite and rare gemstones. Founded in 1974 ...

Appealing to collectors of Earth's ancient treasures, Heritage Auctions is selling rare meteorites, fossils, and gemstones.

You could say she’s a rare gem, no pun intended, that will be hard to replace. Gaylene Lindell stands near a jewelry case at Gaylene’s, 3045 Fulvanna Ave. Lindell will be retiring and closing ...

An curved arrow pointing right. Almost every gemstone in the world can be found in deep underground pits in Sri Lanka, a country renowned for its colored sapphires. But mining for the gems is ...