A brief description is given of a new facility that permits Fe-57 Moss
bauer spectroscopy (MS) studies in transmission geometry to be made in
the range 10-300 K on absorbers pressurized in a diamond-anvil cell.
Examples are given of good quality spectra which have each been obtain
ed in 20-30 hours by using a ''point'' source of similar to 5 mCi in c
onjunction with absorbers that have a comparatively low-enrichment (10
-20%) of Fe-57. The successful execution of Fe-57 MS at high pressures
and variable cryogenic temperatures has been achieved by making simpl
e refinements to existing elements of high-pressure MS methodology. Th
e facility described herein finds important application in fields of g
eophysics and condensed matter physics.