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.

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

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

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 - ...

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

In his hand, he stroked a different rock — vanadinite, Dave said, joking about how hard it is to pronounce. It’s a lead-based mineral that forms reddish crystals, according to Dave.

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 ...

A priest with a rock collection and a massive vision turned this corner of Iowa into a legend. The Grotto of the Redemption ...

PT Rocks and Gems, which offers crystals, stones, jewelry and decor ... who is also the tour director for the nonprofit Minnesota Mineral Club, said he hopes the store can help people get more ...

These minerals in turn may have spurred ... Using this ratio to calculate the ages of crystals within different layers of ancient rock, the researchers determined how the rock grew or eroded ...