Trained as a geologist specializing in mineralogy and crystallography, Dr. George Harlow has concentrated his research on the chemistry and structure of minerals as tools for understanding their origin and the record of geological processes they contain. This interest and questions about specimens in the gem collection led him to a study of jadeite rock, used as jade, and related rocks from Guatemala and, more recently, Myanmar (Burma), Japan and Cuba. Expeditions to Myanmar permitted visits to the famous ruby deposits including the Mogok Stone Tract which has led to a research project on the genesis of the deposit and the myriad minerals and gems they produce.