Xerox claims that its printers, which can crank out 80 pages a minute, can target specific areas of a page for color printing using a material that is cheaper than whatis used in standard laser printers.
Since every isotope that spews gamma or X rays or charged particles does so in a unique way--an atomic fingerprint, of sorts--the color and intensity of the flash tells the detector which isotope is present and inwhat quantity.
The thing that made Marina B designs groundbreaking in its time and what makes them a product of the modern era is the use of color. 18k yellow and black gold is matched with an array of colored gemstones.