Scientifically speaking, the term “crystal” refers to any solid that has an ordered chemical structure. This means that its parts are arranged in a precisely ordered pattern, like bricks in a wall.

Neolithic people sprinkled the crystals over burials. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Hundreds of fragments of a rare transparent ...

Whether you know it or not, you encounter crystals in your everyday life quite regularly. Table salt, sugar and snowflakes are classified as types of crystals, as are many gemstones—including amethyst ...

Michigan researchers were part of a team that has solved a 200-year mystery of growing a common mineral in a laboratory, a development that may one day allow them to produce the substance for ...

Near a village in central Romania sits a cluster of rocks that can grow and reproduce as though they were living. These unusual rocks, known as trovants, simultaneously push out several "babies" that ...