Researchers from the University of Göttingen have investigated an intriguing geological phenomenon in Uruguay. These ...

“It was surprising to find these very low temperatures,” Arduin Rode says. Researchers studying amethyst geode formation in Brazil’s lava flows have proposed temperatures below 100 ° ...

People view the 12-foot tall amethyst geode from Uruguay hosted at the American Museum of Natural ... [+] History in New York. Thanks to geological surveys and detailed chemical analysis ...

The three-meter tall amethyst geode - a hollow rock filled with amethyst crystals - is the main attraction at the Crystal Caves at Atherton, southwest of Cairns. But it's now missing a bit after a ...

Amethyst is a violet variety of quartz which ... geological surveys across more than 30 active mines, analysing geode minerals, geode-hosted water, and groundwater. Using advanced techniques ...

Northern Uruguay is home to one of the largest amethyst deposits in the world – but their formation has long been a mystery.

You will usually find them in underwater caves or trapped structures in a triple layer of smooth basalt, calcite, and the amethyst geode. Use chunkbase to find the concentration of amethyst geodes ...

Amethyst geodes (some over 16 feet high ... To find out more, researchers carried out a series of geological surveys analyzing geode minerals, groundwater and geode-hosted water in over 30 ...

Explore geodes and handmade jewelry at the 61st Midland Gem and Mineral Show, featuring family-friendly activities and unique ...

An envelope. It indicates the ability to send an email. Amethyst is one of the most abundant crystals in the world, but the most prized pieces can cost almost a million dollars. Some of the world ...

Along with Ametista do Sul in southern Brazil, these regions are the world’s leading mining districts for gems which come from volcanic lava, such as amethyst and agate geodes.