Diamond measurement, 77K, Titkov <i>et al.</i> 1994

Diamond measurement, 77K, Titkov et al. 1994

Reference	Titkov SV, Ivanov AI, Marfunin AS, Bershov LV, Kulakov VM and Chukichev MV. On the origins of green bulky colour of natural diamonds related to ionizing radiation.-Doklandi RAN-1994-V335-No4-P498-502.
Material	Diamond [ C ] A rare blue diamond from India, in the Smithsonian National Museum of Natural History (G3551-00) © Photo by Chip Clark, via Smithsonian National Museum of Natural History
Specimen temperature	77K
Technique	Unknown
Line	GR1 center 740 nm