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.

The Idaho Falls Gem and Mineral Society will be holding its 59th Annual Gem and Mineral Show next weekend at the Bonneville County Fairgrounds south of Sandy Downs. It will feature games, prizes and a ...

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 ...

Thundereggs aren't technically rocks, but geodes. Geodes typically have a hollow or semi-hollow interior filled with minerals or crystals. When opened, many thundereggs reveal "exquisite and ...

Have a rock, mineral or fossil you are unsure of? Bring it for the experts to identify. Demonstrations of flintknapping, geode cracking, gold panning, UV fluorescent rocks, silversmithing and rock ...

like visiting the rock buffet. Continue reading Exciting Spring Break Gem & Mineral Show Returns: Kids Fossil Dig, Geode Cracking, Rock Collecting & More – 2025 at grkids.com.

The finest example of Rhodochrosite in the world is on display in Denver, Colorado, at the Denver Museum of Nature and ...

The annual Lakeside Gem & Mineral Club show is coming to the Benton County Fairgrounds and it has almost doubled in size. The ...