Colored gems are higher value stones. People start to know the stones, and some beautiful stones become treasures. With the development of science, geologists gradually carried out scientific classification of various stones, giving them their own names. The gem industry in our country only developed in the 1980s, after which the concept of gems gradually […]
Archivos de Etiquetas: Main features of natural colored gemstones
3) Transparencia y pureza: La transparencia se refiere al grado en que las piedras preciosas de colores pueden transmitir la luz., y la pureza se refiere a la cantidad de impurezas dentro de la piedra preciosa.. Aunque las piedras preciosas de colores no pueden ser claras y transparentes, una mayor transparencia mejorará su calidad general. The transparency and purity of colorless gemstones are important factors for the beauty […]