title: Report of the working group on crystal phase identifiers.
abstract: The proposed crystalline phase identifier consists of a number of components (layers) describing enough properties of the phase to allow a unique identification. These layers consist of the chemical formula, a flag indicating the state of matter, the space-group number and the Wyckoff sequence. They are defined in such a way that they can be incorporated into the IUPAC International Chemical Identifier (InChI) proposed by the International Union of Pure and Applied Chemistry (IUPAC).
authors.affiliation: Brockhouse Institute for Materials Research, McMaster University, Hamilton, Ontario L8S 4M1, Canada. idbrown@mcmaster.ca
authors.forename: I David
authors.initials: ID
authors.lastname: Brown
authors.forename: Sidney C
authors.initials: SC
authors.lastname: Abrahams
authors.forename: Michael
authors.initials: M
authors.lastname: Berndt
authors.forename: John
authors.initials: J
authors.lastname: Faber
authors.forename: Vicky L
authors.initials: VL
authors.lastname: Karen
authors.forename: W D Sam
authors.initials: WD
authors.lastname: Motherwell
authors.forename: Pierre
authors.initials: P
authors.lastname: Villars
authors.forename: John D
authors.initials: JD
authors.lastname: Westbrook
authors.forename: Brian
authors.initials: B
authors.lastname: McMahon