Nanosculptures on round surfaces of natural diamonds


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Abstract

The results of a study using scanning electron microscopy and atomic force microscopy comprising the micromorphology of the ditrigonal and trigonal layers on surfaces near the edges of octahedral diamond crystals from the Udachnaya-Eastern kimberlite pipe in Yakutia are presented. The studied surface sculptures are elongated parallel to the direction 〈111〉 and have similar morphological features, characterized by a wavy profile across the lamination, the absence of flat areas at the micro- and nanolevel. It is proposed that both sculpture types were formed as a result of dissolution under natural conditions. This suggestion is corroborated by the revelation of negative trigons on the octahedral facets of the studied diamonds.

About the authors

A. A. Chepurov

Sobolev Institute of Geology and Mineralogy, Siberian Branch

Author for correspondence.
Email: achepurov@igm.nsc.ru
Russian Federation, Novosibirsk, 630090

S. S. Kosolobov

Rzhanov Institute of Semiconductor Physics, Siberian Branch

Email: achepurov@igm.nsc.ru
Russian Federation, Novosibirsk, 630090

D. V. Shcheglov

Rzhanov Institute of Semiconductor Physics, Siberian Branch

Email: achepurov@igm.nsc.ru
Russian Federation, Novosibirsk, 630090

V. M. Sonin

Sobolev Institute of Geology and Mineralogy, Siberian Branch

Email: achepurov@igm.nsc.ru
Russian Federation, Novosibirsk, 630090

A. I. Chepurov

Sobolev Institute of Geology and Mineralogy, Siberian Branch

Email: achepurov@igm.nsc.ru
Russian Federation, Novosibirsk, 630090

A. V. Latyshev

Rzhanov Institute of Semiconductor Physics, Siberian Branch

Email: achepurov@igm.nsc.ru
Russian Federation, Novosibirsk, 630090

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