1、galena [lead sulphide]
2、Silver is positively correlated with copper in ores and is absent in galena.
3、The kinetics of two-ores leaching process of galena concentrate and manganese dioxide was investigated.
4、These cosmetics were made by grinding ores like malachite and galena into a substance called kohl.
5、Usually as intergrowths with quartz, pyrite, galena, sphalerite, cinnabar, chalcopyrite tec, various shapes .
6、The effective potential range of self-induced flotation of galena and its lower and upper limits have been determined.
7、It is found that the flotation selectivity of galena against sphalerite is reduced by the use of recycled water.
8、Those were indeed the olden days so the only "active" element was a galena crystal grazed by a wire whisker.
9、The main metal mineral in a cyanide tailing is pyrite and a little sphalerite, galena and chalcopyrite, gangue mineral is quartz.
10、Cleavage occurs on planes where the atomic bonding forces are weakest; for example, galena cleaves parallel to all faces of a cube.
11、The minerals are likely to be from the suite pyrite chalcopyrite, sphalerite, galena, fluorite and barite, and to be deposited at temperatures of between 50 and 250℃.
12、Minor element discrimination indices for residual primary sulfides (pyrite, pyruhotite, chalcopyrite, sphalerite, galena, etc.) and supergene ore minerals (goethite, hematite, manganiferons minerals, covellite, native gold, clay minerals, quartz, etc.)
13、The results indicated that large amounts of non-natural silver grains existed in this branch of lead concentrates and the silver grains were distributed around the galena in a loose flocculating form.
14、"Sulfur: Nonmetallic chemical element, chemical symbol S, atomic number 16. It is very reactive but occurs native in deposits, as well as combined in various ores (e.g., pyrite, galena, cinnabar); in coal, petroleum, and natural gas; and in the water in sulfur springs."
