A technique for extracting small crystals from thin sections

Peter C Rickwood American Mineralogist, Volume 62, pages 382-384, 1977 Micromanipulators used by life scientists have been evaluated for extracting minute grains (< 20 pm) from petrological thin sections. A pantograph design with a single control for all motion was found to be the most convenient, and sharpened hypodermic needles made ideal probes.