The morphology of calcite grown in a supersaturated solution was drastically changed from a regular rhombohedron into a spherical architecture consisting of nanocrystalline mosaics in the presence of ...

Figure 1. The 75 ct black star sapphire that was brought in for testing. Photo by Wimon Manorotkul. In Thailand, one often sees cavities on the back of black star sapphires filled in with brown ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

These trials have resulted in the production of blocky, rhombohedron-shaped crystals of diffraction quality currently in use for structure determination. Dramatic improvements in crystal quality were ...

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.