Millard County Chronicle | 1944-10-12 | Page 7 | No Two Diamonds Alike; Differ in Fluorescence

No Two Diamonds Alike; Differ in Fluorescence Diamonds are so individual that no two can be expected to react alike to radiation, says Collier's. For example, under X-rays and ultraviolet light, their fluorescence ranges from a faint to a brilliant intensity and may be in any one of various shades of blue, green, orange or-ange or yellow. Heat also causes different reactions in these gems. There are two, one colorless and one pink, in which heat produces an opposite effect, the colorless one turning and remaining pink and the pink one becoming and remaining colorless as long as they are kept at a certain temperature.