A crystal is a ... a primary source of lead, displays a shiny, metallic appearance and typically forms as well-defined cubes ...

This is bismuth — a natural chemical element that chemically resembles arsenic and antimony. But there’s a catch with this crystal. While bismuth occurs naturally in the Earth’s crust, the striking ...

This technique, detailed in Advanced Materials, could lead to environmentally friendly ... by compressing or stretching its atomic unit cell—the repeating pattern of atoms that defines its crystal ...