Yttrium aluminium garnet (Ce:YAG) is used as a phosphor in cathode ray tubes and white light-emitting diodes, and as a scintillator. YAG for a period was used in jewelry as a diamond and other gemstone simulant. Colored variants and their doping elements include: green (chromium), blue (cobalt), red (manganese), yellow (titanium), purple (neodymium), pink, and orange. As faceted gems they are valued (as synthetics) for their clarity, durability, high refractive index and dispersion. The critical angle of YAG is 33 degrees. YAG cuts like natural garnet, with polishing being performed with alumina or diamond (50,000 or 100,000 grit) on common polishing laps. YAG
The Garnet Bracelet The Garnet Bracelet The Garnet Bracelet () is a short novel by Alexander Kuprin, first published in Zemlya (Land) almanac, Vol. 6, 1911. Maxim Gorky, who among others praised the novel, saw it as "the sign of a new literature coming." Kuprin started writing what he first saw as a short story in Odessa in the autumn of 1910. "One of these days I'm going to send Blum[enberg] a little piece, called The Garnet Bracelet," he informed friend V.S.Klestov in a letter dated September 29. But the story, getting larger and larger, took three months to be completed. The plot