Molybdenum is element number 42 in the periodic table. Although, this element is a trace constituent in the Earth and life, it currently deserves a lot of attention. With Brian Kendall and Ariel Anbar, I have written a review that brings the latest update on the various aspects of molybdenum isotopes and their current use in geochemistry, cosmochemistry and biochemistry.
This review is published in Reviews in Mineralogy and Geochemistry – Non-Traditional Isotopes published by the Mineralogical Society of America and the Geochemical Society
The book is available here: http://www.minsocam.org/MSA/RIM/rim82.html