Modern Cultivation of Freshwater Pearls in China: Advances in Materials, Technique

This paper aims to present the history of the modification of Baltic amber (succinite), and particul

Purple jadeite, renowned for its distinctive purple hues and rich cultural connotations, is highly a

Yuri Shelementyev, Galina Kriulina, Olga Yarapova, Viktor Vins, and Alexander Stolyarevich