selected publications journal article MICRO- AND NANOSCALE GRAPHITE CONES AND TUBES FROM HACKMAN VALLEY, KOLA PENINSULA, RUSSIA. Canadian Mineralogist. 45:379-389. Miracle at Merelani A Remarkable Occurrence of Graphite, Diopside, and Associated Minerals from the Karo Mine, Block D, Merelani Hills, Arusha Region, Tanzania. Rocks and Minerals. 88:154-165. Naturally occurring graphite cones. Carbon. 41:2085-2092. Plasma synthesis of hexagonal-pyramidal graphite hillocks. Carbon. 76:330-340. The Graphites of New York: Scientific and Aesthetic Surprises. Rocks and Minerals. 84:502-519.