Opal is a gemstone with a color-changing effect. Pliny, a famous natural scientist in ancient Rome, once described it as follows: “On an opal stone, you can see the flame of ruby, Ametist kabi rang dog'lari, and the emerald sea. Yashil rang, the five colors are colorful, blending together, and beautiful.” Qadimgi Xitoyda, opal […]
