The Hogg Estate or Mineral Processing Mine, LaGrange, Troup .and asteriated rose quartz, little has been published about the history and . specimen-mining company and is open intermittently to the public on a fee basis.rose quartz mining company,Quartz & other Silica Minerals.pmd - Indian Bureau of Mines(opalescent greenish quartz with fibrous structure); rock crystal (clear . transparent quartz; rose quartz; smoky quartz; etc. ... Shree B.S. Mining Company.Gemstones from Vietnam: An Update - GIA.eduthe exploration, mining, and trading of gem materials. (Kane et al., 1991; Pham et al., 2004b). Two sub- sidiaries, Yen Bai Gemstone Company and Nghe An.
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