...used in the manufacture of spiegeleisen. All the other localities produce these ores for fluxing only. Manganiferous zinc residuum is obtained from zinc...The residuum consists largely of iron and manganese oxide, the zinc having been removed by volatilizing and collected as zinc oxide. The crude ores consist...

...used in the manufacture of spiegeleisen. All the other localities produce these ores for fluxing only. Manganiferous zinc residuum is obtained from zinc...The residuum consists largely of iron and manganese oxide, the zinc having been removed by volatilizing and collected as zinc oxide. The crude ores consist...

...for alloys of these two ; such ore is sold for flux, and the lead-silver content ultimately saved. Manganiferous zinc residuum is obtained from zinc...and oxidizing furnaces using New Jersey zinc ores, and consists largely of the iron and manganese oxide which remains after the zinc has been volatilized...

...manganese becoming waste products, while the silver and lead content is recovered during the smelting. Manganiferous zinc residuum. — Manganiferous zinc...collected as zinc oxide. The crude ores consist of franldinite, rincite, and willemite, and are obtained only from the Franklin Furnace district, New...

...residuum is an artificial furnace product consisting of manganese and iron oxides in a matrix of slag. It is obtained from zinc volatilizing and oxidizing furnaces using New Jersey zinc ores. Small quantities of zinc residuum are used annually in the manufacture of spiegeleisen. Bulletin 427...

...Manc/anifcrous zinc residuum. — Manganifcrous zinc residmim is an artificial furnace product consisting of manganese and iron oxides in a matrix of slag....volatilization and collected as zinc oxide. The crude ores contain franklinitc, zincite, and willemito and aro obtained only from the Franklin Furnace district,...

...for alloys of these two ; such ore is sold for flux, and the lead-silver content ultimately saved. Manganiferous zinc residuum is obtained from zinc...and oxidizing furnaces using New Jersey zinc ores, and consists largely of the iron and manganese oxide which remains after the zinc has been volatilized...

...residuum is an artificial furnace product consisting of manganese and iron oxides in a matrix of slag. It is obtained from zinc volatilizing and oxidizing furnaces using New Jersey zinc ores. Small quantities of zinc residuum are used annually in the manufacture of spiegeleisen. Bulletin 427...

...residuum is an artificial furnace product consisting of manganese and iron oxides in a matrix of slag. It is obtained from zinc volatilizing and oxidizing furnaces...by volatilization and collected as zinc oxide. The manganese content is 14 to 15 per cent. Mineral. Composition. Percentage manganese. Polianite MnO2...

...and Great Basin regions, the principal producing locality being LeadvUle, Colo. Some of the Leadvule ores are used in the manufacture of spiegeleisen....consists largely of iron and manganese oxides, the zinc hairing been removed by volatilization and collected as zinc oxide. The crude ores consist of franklinite,...