Robert T. Downs
Bob Downs has 25 years of experience (200 publications) in mineralogy and crystallography; 20 years of experience in mineralogical databases including the American Mineralogist C1ystal Structure Database with 351 million current hits, and 10 years with the RRUFF database of experimental chemical, X-ray diffraction and spectroscopic measurements of minerals receiving about 80,000 hits per week.