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 Warrior always respawn in zones, leaving behind only their corpse as a reminder that the player had been there, although some do return to life, such as the skeletons and ghosts. The goal is to traverse the maze to locate the Labyrinth, find the five pieces of Gemstone within its randomly generated layout, and return to the entrance cavern to escape. Gemstone Warrior Gemstone Warrior is an action role-playing game written by Canadian developer Paradigm Creators for the Apple II and published by Strategic Simulations in 1984. It is an action-adventure title set against a 2D screen with the player controlling