Geodes are small rock cavities lined with crystals or minerals. They form through sedimentation, a process in which particles (solute) are suspended in fluid (solvent) and then accumulate. (Here, the ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Discovered in 1999 during mining operations in the Mina Rica (the ...

While each product featured is independently selected by our editors, we may include paid promotion. If you buy something through our links, we may earn commission. Read more about our Product Review ...

No charging in the moonlight necessary. If, like us, you’ve entered the new year with a desperate need to manifest and heal yourself from the inside out, then there’s no doubt you’re pulling out the ...