Study of Brazil twin composition planes in synthetic growth quartz crystals by X-ray topography

  1. Marina Gonzalez Mañas
  2. Manuel Antonio Caballero López-Lendínez
Revista:
Boletín de la Sociedad Española de Mineralogía

ISSN: 0210-6558

Any de publicació: 1990

Volum: 13

Número: 0

Pàgines: 19-24

Tipus: Article

Altres publicacions en: Boletín de la Sociedad Española de Mineralogía

Resum

In this paper traverse and section topographs corresponding to Brazil twin composition planes on Z-plates of synthetic quartz crystals are described and analysed to determine their crystallographic orientation and displacement vector,!^ It is found that these composition planes are parallel to the major rombohedral plane (0111) with the value of the displacement vector R* = ± 1/9 [100].