Study of Brazil twin composition planes in synthetic growth quartz crystals by X-ray topography
ISSN: 0210-6558
Ano de publicación: 1990
Volume: 13
Número: 0
Páxinas: 19-24
Tipo: Artigo
Outras publicacións en: Boletín de la Sociedad Española de Mineralogía
Resumo
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].