Amethyst and it can not be differentiated with absolute certainty without advanced gemmological testing (which is often cost-prohibitive). There is one test based on "Brazil law twinning" (a form of quartz twinning where right and left hand quartz structures are combined in a single crystal) which can be used to identify synthetic amethyst rather easily. It is possible to synthesize twinned amethyst, but this type is not available in large quantities in the market. Single-crystal quartz is very desirable in the industry, particularly for keeping the regular vibrations necessary for quartz movements in watches and clocks, which is where a lot
Amethyst, Princess of Gemworld angry over Donal's murder, banishes Mordru into Gemworld by merging him with the planet where he remains for many years. Amber is revealed to be Amethyst's daughter, not Topaz and Turquoise's. Realizing that the end of her time on Earth has brought imbalance to the forces between order and chaos, Amethyst charges Emmy with the care of her daughter and takes them both back to Earth. Amethyst then returns to Gemworld and merges with the planet until she would be needed again. Recently, Amethyst has re-appeared in the DC Universe during the "Infinite Crisis" storyline. She is first seen battling