What would a chimpanzee do if you handed it a glittering quartz crystal? Apparently, the same thing many of us would-hold ...

Rockhounding connects us to our primordial interest in crystals and gemstones, as demonstrated in a fascinating new study of ...

At many prehistoric sites, archaeologists have discovered crystals alongside tools and human remains. These stones, some of which are nearly 800,000 years old, show no trace of functional use. Their ...