John Rakovan

Department of Geology and Environmental Earth Science
Miami University
250 S. Patterson Ave.
Rm. 114 Shideler Hall
Oxford, OH 45056-2473

Telephone: (513) 529-3245
email: (replace "nospam" with "rakovajf")

B.S., University of Illinois at Urbana-Champaign, 1988
M.S., University of Illinois at Chicago, 1990
Ph.D. State University of New York at Stony Brook, 1996
Postdoctoral research faculty Virginia Polytechnic Institute 1996-1997
Faculty member at Miami University since 1998

Research Interests: Environmental Mineralogy, Crystallography and Crystal Chemistry

My research interests involve the integration of low temperature geochemistry and mineralogy in the study of crystal surfaces and water-rock interactions found in natural systems. In particular, I am interested in environmentally significant processes such as crystal growth, metal sorption, trace element partitioning and other surface mediated reactions. My research also addresses the structural response of minerals to substituent elements, especially lanthanides and actinides in apatite group minerals.

Current research projects include: Use of phosphate minerals for environmental remediation; the role of crystal surface structure on trace element incorporation during growth; crystal chemistry of the lanthanides and actinides in apatite; crystal growth and trace element incorporation in fluorite and apatite; understanding fundamental interactions between aqueous metal species and soil minerals; mineral replacement reactions.

Chemically zoned fluorapatite from the Panasqueira tungsten deposit Portugal (Joaquim Callén photo ). HRTEM photomicrograph of the apatite structure (Mark Krekeler image).

Partial Vitae

Selected Publications

2016 Dallas Mineral Symposium talk on crystal growth

Undergraduate and Graduate Student Research at Miami






Apatite Mineral monographs V.17


Apatite Nomenclature - IMA Summary Full Report


Apatite: A mineral for all seasons Elements Magazine V.11 #3


Apatite: World Review Comprehensive reviews of specimen and gem producing localities Rocks & Minerals May/June 2015


Rocks & Minerals



News flash: Neutron Diffraction of large gold crystals Los Alamos National Laboratory

Mineralogy at Miami

Undergraduate Research Opportunities

Careers in Geoscience