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Abstract
We describe the shape and internal structure of polyhedral spheroids found in serpentinized peridotites. Serpentine spheroids resemble geodesic domes made of ~160 to 180 triangular facets. At facet edges, the nested layers bend by ~14° along their three <010> crystallographic directions, resulting in an onion-like structure with lateral continuity of the layers. The stacking of the serpentine layers within sectors is controlled by interlayer bonding. These polyhedral onions correspond to a novel type of spherical nanostructure for layered materials.
Received: 2006-7-18
Accepted: 2006-10-20
Published Online: 2015-4-1
Published in Print: 2007-4-1
© 2015 by Walter de Gruyter Berlin/Boston
