Optical Microscopy of Meteoritic Metal

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Sample Selection | Sectioning | Epoxy Mounting | Grinding & Polishing | Etching | Microscopy

A label is the attached to the back side of the specimen, and the labeled specimen is mounted in a 1 to 1.25" epoxy plug.  The epoxy protects the specimen from mechanical stresses during grinding, polishing, and etching.

I prefer to use a two-part epoxy made by Extec of Enfield Connecticut (the resin is Extec #14729, and the hardner is Extec #14732).  This epoxy cures at room temperature and has very good edge retention.