title: A hexagonal (wurtzite) form of silicon.
abstract: The existence of a hexagonal (wurtzite) form of silicon, similar to that form of diamond (carbon) observed in meteorites and in the laboratory, has been identified by x-ray diffraction in reaction-bonded silicon nitride containing unreacted silicon. The presence of this phase is due to stresses created in the silicon by the nitridation reaction.
authors.forename: H M
authors.initials: HM
authors.lastname: Jennings
authors.forename: M H
authors.initials: MH
authors.lastname: Richman