Association of simple (1T, 3R) and complex six-layer polytypes of lizardite from kimberlite pipe Catoca (Angola)

Abstract

The unusual lizardite association was identified from electronographic patterns of textures for serpentine from the zone's lower section (depth 124.0 m). In accordance with the analysis data, its formation is attributed to specificity of hydrothermal processes, which accompanied formation of serpentines with enhanced content of Fe3+ cations