Steve Hillier, David Riley (http://www.minersoc.org/files/vermiculite-video.mp4 )
Hydrogen peroxide exfoliated Palabora ‘Vermiculite’ (hydrobiotite) See video footage at link below, showing time lapse of exfolaition process over 7 hours real time. Note bubbles in early stages when peroxide is still covering the particle, and relaxation as the process completes.
From: Phalaborwa, S.Africa
Dimensions: Field of view. approximately 3 cm wide
These images are free to all to download for non-profit purposes. All published uses of images from this gallery should acknowledge the source using the following term "Image reproduced from the 'Images of Clay Archive' of the Mineralogical Society of Great Britain & Ireland and The Clay Minerals Society (www.minersoc.org/gallery.php?id=2.") To download a copy of an image, click on the photograph of interest to enlarge it, then right click (pc) and select "save picture as" to make a local copy." Note that there are no higher-resolution versions of these figures available. Anyone wishing to contribute images to the archive should e-mail them to to Steve Hillier, at firstname.lastname@example.org. Please download and complete the copyright form here and send a copy, by post or by email, to: Steve Hillier, The James Hutton Institute, Craigiebuckler, Aberdeen, AB15 8QH, Scotland (email@example.com) at the same time.
View other images in the 'General' gallery
View other images in the ''Images of Clay'' gallery
View other images in the 'Images by David Green ' gallery