Ten years ago while studying welding, heat-treating and the composition of different metals in order to further my knowledge in the use of these treatments in the creation of custom cutlery, I learned quite a bit about metallurgy and the impact of assorted chemicals on those metals. At that time, I became interested in the iron meteorites that my father, Ronald N. Hartman, was collecting and using in his teaching. After discussing the process he and most others were using at that time I felt that there had to be a better way for the etching process to be done other than "soaking" the specimens in nitric acid. You can email Jim at jim@imca.cc.