N'oge na-adịbeghị anya, onye nta akụkọ ahụ mụtara site na Henan Provincial Bureau of Geology and mineral exploration na otu International Association for mineral exploration and development na-akwado ya site na nhazi nke ịnweta ọhụrụ.

Dịka ndị ọrụ nka nke Bureaulọ Ọrụ ahụ siri kwuo, a chọtara igwe ọla ọcha kongtizu na Yindongpo gold mine, County Tongbai, Nanyang City, Henan Province. Ọ bụ onye nke itoolu n'ime ezinụlọ ọhụrụ ịnweta ịnweta mba ụwa nke sitere na "mba Henan". Mgbe usoro ihe omumu ihe omimi nke usoro ihe omuma banyere ihe ndi ozo, ihe omuma nke kemịkalụ, nhazi kristal na ọdịdị dị iche iche, ndị otu nyocha ahụ kwadoro na ọ bụ mineral ọhụrụ nke ezinụlọ tetrahedrite nke a na-ahụbeghị na okike.

Dika nlebanya na nyocha siri gosi, ihe nlere nke ịnweta bụ oji isi awọ, isi awọ n'okpuru ìhè egosipụtara, ma nwee nhụsianya dị n'ime na-acha uhie uhie na-acha aja aja, ọla ọla na-acha odo odo na ọnya ojii. Ọ na-agbaji agbaji ma na-ebikọ ọnụ na mineral ndị dị ka ọla ọcha ọla ọcha, sphalerite, galena, tetrahedrite ọlaọcha efu na pyrite.

A na-akọ na tetrahedrite ígwè efu bụ mineral tetrahedrite kachasị ọlaọcha na okike, yana ọdịnaya ọlaọcha nke 52.3%. Nke kachasị mkpa, a maara usoro ya pụrụ iche dị ka ihe omimi a na-edozibeghị nke ezinụlọ tetrahedrite site n'aka ndị ọgbọ mba ụwa. Ọrụ ya pụtara ìhè na catalysis, mmetụta kemịkalụ na ọrụ fotoelectric aghọwo ebe dị ọkụ na ngalaba nyocha nke ụyọkọ ọlaọcha.