title: Montmorillonite: electron diffraction from two-dimensional single crystals.
abstract: Some Selected area electron diffraction patterns of isolated monocrystalline particles of both Wyoming and Camp Berteaux sodiumti-monfmorillonites fail to show the mirror platne symmetry required for the accepted structure. A triclinic model deserves consideraction.
authors.forename: H E
authors.initials: HE
authors.lastname: Roberson
authors.forename: K M
authors.initials: KM
authors.lastname: Towe