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 ...

The crystal structure is also known as diamond cubic and may be thought of as two interpenetrating ... The hexagonal wurtzite structure has the sulphur ions in an hcp array and one-half of the ...