The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
(also Neumann’s bands), narrow, parallel lines that appear when polished surfaces of hexahedrite-type iron meteorites are etched with a solution of nitric acid or some other acid. They are named after F. E. Neumann, who first observed them.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.