Dushan jade is named after Dushan, about 8km northeast of Nanyang City, Henan Province, ed è anche chiamato “Nanyang Jade”. It is a kind of zoisite plagioclase, belonging to multi-color jade, referred to as “du jade”. Duyu has bright colors, complete patterns, both shades, trama fine, dense and hard, Mohs hardness 6-6.5, glass luster or […]
