Robert Crowningshield Dies

Robert Crowningshield, a legend of gemology revered for his pioneering work in many areas of gemological research, died after a long illness at the age of 87. Crowningshield was a former vice president of the Gemological Institute of America and one of the two founding leaders of the GIA Laboratory in New York, which was established in 1948. “He taught us how to look for the truth, and to find the core qualities in both gemstones and in people,” said Tom Moses, vice president of GIA Laboratory and Research, one of his closest friends. “He was an important man in our field, but he was also our friend, our teacher, and one of our leaders.” Crowningshield was best known for his work in spectroscopy. His extensive list of firsts includes groundbreaking findings in the spot method of refractive index determination on Rayner and similar refractometers, spectroscopic recognition o

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