In general, mineral particles are small, having formed within confined areas such as lava flows or between grains of sediments. Large crystals found in geodes and other rocks are relatively rare.

In a new paper, Jordan Jensen and Alexis Ault introduce a new forensic tool designed to enhance our understanding of how ...

Adrienne McElwain, also known as The Crystal Barista, stopped by Morning Break to share the details of this free, ...

Anderson will share some of his stories at the Gem, Mineral & Fossil Show – put on by the Black Hawk Gem & Mineral Society – at the Waterloo Center for the Arts, 225 Commercial St., on Sunday. The ...

Ever wonder how Earth scientists examine rocks? We cut them up and throw them under a microscope ... and then everything ...

No bigger than a smartphone, this remarkable rock has layers that tell the story of the working lives and hardships of miners in the 1800s. A flawless blue topaz gemstone - the largest of its kind - ...

Many people think that because rocks are usually hard and have lasted millions ... The more chemically complex minerals do not often form into crystals that are particularly big, so large specimens ...

Some minerals in rocks and organic matter (e.g., wood, bones, and shells) can contain radioactive isotopes. The abundances of parent and daughter isotopes in a sample can be measured and used to ...

Silent auctions added an extra layer of excitement, as attendees placed their bids on rare and unique pieces, hoping to take ...

NASA's Curiosity rover finds sulfur-rich crystals on Mars, hinting at ancient water and potential life-supporting conditions.

PT Rocks and Gems, which offers crystals, stones, jewelry and decor, has opened in the Crossroads Center Mall. Owner Phil Barrett operated a seasonal booth at the mall and visited statewide events ...