Diamonds are famous for their strength, but scientists have long suspected that another form of diamond might be even harder. Evidence of this was gathered over the past sixty years in meteorite ...
An international research team has produced a bulk, millimeter-scale hexagonal diamond in the laboratory, a crystal variant ...
Several months ago, the Hope Diamond was taken from the National Museum of Natural History for an overnight stay in the mineralogy lab. Chip Clark / NMNH, SI At first, Evalyn Walsh McLean, an heiress ...