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
Henry Garnet use equivocation, he supposed, were limited, but such replies could be taken as an example of insincerity or deviousness—especially to the king's council, who may not have wanted to see Garnet prove his case. The council's view of equivocation was very different from Garnet's. In their eyes, it was simple deceit. The next day, Garnet was moved to the [[Tower of London]], into what he described as "a very fine chamber". He was afforded [[claret]] with his meals, though it took him some time to get bedding and coal for the fireplace. He claimed that Lieutenant of the Tower William