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
Gemstone Healer and returns with the Gemstone. However, the Gemstone's magic has been lost. In the sequel, the player must now journey to the Center where the gods had forged the Gemstone and restore the balance of the magic within it by splitting it once more and healing each piece. This time, the player will have to contend with the challenge of discovering the tools that can restore the magic to the Gemstone as well as facing Nicodemius himself. The player is asked to name the dungeon that will be created for the game. Dungeon map generation is based on the first