The Peacock Medal formerly the Past-Presidents' Medal is awarded to a scientist who has made outstanding contributions to the mineral sciences in Canada. There is no restriction regarding nationality or residency. The medal is intended to recognize the breadth and universality of these contributions in mineralogy, applied mineralogy, petrology, crystallography, geochemistry or the study of mineral deposits rather than in a narrow area of expertise. A committee of three Past Presidents, chaired by the immediate Past Presidents, considers all nominations received. Nominations should be accompanied by a one-page explanation of the merits of your nominee and forwarded to Iain M. Samson (Department of Earth and Environmental Sciences, University of Windsor, Windsor, Ontario N9B 3P4, CANADA; phone: (519) 253-3000 ext. 2489; fax: (519) 973-7081; e-mail: ims@uwindsor.ca by December 31, 2012.

Previous recipients of the medal are: