Whether the resulting crystal possessed full octahedral symmetry or was of the lower tetrahedral type ... new interest in the structure of diamond was aroused by the work of Robertson, Fox ...

“We predicted that the post-diamond BC8 phase would be experimentally ... First hypothesized in the 80s, BC8 was seen as a structure that maintained the tetrahedral atom shape as diamonds ...

Zinc sulphide exists with two different crystal structures, the cubic zinc blend (top diagram) and the hexagonal Wurtzite (lower diagram). In the zinc blend structure the sulphur ions form an fcc ...

“The BC8 structure maintains this perfect tetrahedral nearest-neighbor shape, but without the cleavage planes found in the diamond structure.” While the theory is sound, attempts to synthesise ...