Industrial growth, morphology and some properties of Bi-colored amethyst–citrine quartz (ametrine)

Abstract

In the middle of the 1990s the first industrial technology for producing synthetic bi-colored amethyst–citrine quartz (ametrine) was created. The technology is based on results of studies of the effect of different physical–chemical and growth factors on the formation, stability and the character of the distribution in crystals of amethyst and citrine color centers