Amethyst quality origin
2023/6/3 0:17:01 266 Times
The color of amethyst is caused by mixing iron elements and being irradiated by gamma rays. The charge transfer between Fe and O occurs in the [FeO4] color center formed by Fe3+ replacing Si4+;
But when heated to 300-400 °C, the purple color fades to yellowish-brown or brown.
Amethyst is in China, the five elements are wood, and the Xiluan array purifies. Synthetic amethyst has uniform color and no gas-liquid inclusions; natural amethyst has uneven color distribution, distributed in irregular sheets, and often contains gas-liquid inclusions.
Amethyst is mainly formed in hydrothermal veins under lower temperature and pressure conditions.
Amethyst is widely distributed all over the world, and its main origins are: Uruguay, Brazil, China, etc. Among them, amethyst produced in Uruguay has always been the most advanced hue of purple in amethyst. This purple is very deep, very delicate, with a burgundy "fire". Nearly discontinued, it is a must-have item in fine jewelry stores around the world.