Using the high-resolution HPCAT x-ray facility, the scientists were able to detect that the basic atomic packing units of vanadium crystals had changed from a cube to a rhombohedron, which ...

The crystals have a complex structure bounded by smooth, curved surfaces, unlike calcite crystals grown in the lab, which take on an angular shape with six flat faces, called a rhombohedron.

The crystals have a complex structure bounded by smooth, curved surfaces, unlike calcite crystals grown in the lab, which take on an angular shape with six flat faces, called a rhombohedron.