The occurrence of imogolite in some scottish soils

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Abstract
Imogolite, a hydrous aluminium silicate with a fibrous morphology and a well defined structure (3), has, since its discovery by YOSHINAGA and AOMINE in 1962 (12), been found as a weathering product of pyroclastic materials in a number of localities throughout the world (4, 9, 13, 14). However, the precise mechanism by which this mineral is formed has not been established. Material with the morphology of imogolite has been observed by electron optical techniques in the clay fraction of podzolic soils developed on dune sand (1) and on a quartz parent material (6), but no conclusive evidence of its presence has been presented. This note records the occurrence of imogolite in a number of Scottish soils developed on parent materials not affected by recent volcanic activity.