Where is there copper sulfate with calcium content above 53, silicon content below 1.5 and sulfur content below 0.08 in Henan?

Kaixuan West Road, Xigong District, Luoyang City. Upon inquiry, there are bluestones with calcium content above 53, silicon content below 1.5 and sulfur content below 0.08 in Kaixuan West Road, Xigong District, Luoyang City, Henan Province. Luoyang Masonry Baodian Stone Co., Ltd. Luoyang Masonry Baodian Stone Co., Ltd. was established on September 25, 20 14. It is a joint-stock company based on a stone processing factory with more than 20 years of processing experience. The company has been renamed several times, formerly known as Dongcheng Stone Factory in Luolong District of Luoyang City and Gold Mountain Rock Stone Factory in Luolong District of Luoyang City.