J Theo KloproggeJ. Theo Kloprogge MSc Geology, PhD Geology/Chemistry, is currently an Honorary Senior Fellow at the School of Earth and Environmental Sciences, University of Queensland, Australia, and Adjunct Professor at the Department of Chemistry, College of Artsand Sciences, University of the Philippines Visayas, Philippines. He has been teaching analytical chemistry, inorganic chemistry and mineralogy/crystallography for many years. During the past 30+ years Dr. Kloprogge has been working as a mineralogist and spectroscopist. The results of his research have been published in nearly 300 papers, numerous book chapters, 5 books and 1 patent. He has been collecting minerals for more than 40 years and has built an extensive collection both for research and private use. Read More Read Less