The micro- and nanoforms of impact diamonds surface

The micro- and nanoforms of impact diamonds surface from Popigai crater and placers of the Western Urals are described with application of high resolution electron microscopy methods. The presence of such surface micro defects as cracks, caverns and pores is established for impact diamonds. Nanocracks and nanopores are the most spread on the impact diamond as surface nanoforms. The peculiarities of internal structure (layering, polycrystalline base) are visible on the surface too. Coverings and coats are constantly presented on the surface. Their chemical composition includes lithophilous elements and different metals.