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 happened and so Salisbury said that Garnet could easily have alerted the government. Salisbury attacked the idea that it had ever been made under the seal of the confessional, and claimed anyway that Garnet could have warned the authorities after his more ordinary conversation with Catesby about the death of innocents; the priest replied by saying that at the time, he did not understand the relevance of Catesby's questions. The Earl of Northampton said, in Latin, ""quod non-prohibet cum potest, jubet"" (what a man does not forbid when he can, he orders). Garnet's defence, that he had forbidden Catesby from