Specimen of Wulfenite is very common. However, Wulfenite ON Dioptase is quite uncommon. It is only discovered at Tsumeb, Namibia, with limited quanities.
The Hongniu Cu deposit in "Sanjiang Metallogenetic Zone" is occurred in the skarnization alteration zone in the margin of marble and the hornfels body.
New 730E frother was used in the flotation tests of common oxidized copper ore, oxidized copper ore with high combination rate and carbonaceous slabby rock copper ore of Tangdan Copper Mine.