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's largest amethyst geodes come out of Artigas ...

Some gemstones are crystals, such as amethyst, which is a variety of the mineral quartz ... a crystal is a solid made up of ...

A crystal radio is basically a high Q resonator tied to an antenna and an envelope detector. These days the envelope detector is a point contact diode such as a 1N34 Germanium diode. The resonant ...

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

Players have dedicated hours searching for these geodes that contain the precious amethyst crystals, an important resource. These precious structures can be quite elusive and might take a while to ...

Welcome to Gem & Crystal WholesaleSituated in Donghai, China, the heart of the country’s crystal production, Gem & Crystal Wholesale is proud to be a leading supplier of natural crystals. Donghai, ...

More than 4,000 naturally occurring minerals—inorganic solids that have a characteristic chemical composition and specific crystal structure ... (At one time, amethyst was also considered ...

Choosing to wear crystal bracelets on your left or right wrist influences how their energy interacts with you. The left hand absorbs the crystal's energy to impact your internal world, whereas the ...

We found the best and most affordable gifts for coworkers, including desk lamps, chargers, coffee cups, games, candles, food, ...

Before joining Raw Story, Brad Reed spent eight years writing about technology at BGR.com and Network World. Prior to that, he wrote freelance stories for political publications such as AlterNet ...