1 This result is sometimes obtained in fusing rich silver ores on charcoal.
2 Most silver ores are easily recognisable, and readily tested by means of the blowpipe or simple fire assay.
3 Workable gold and silver ores are abundant along the Andean cordillera; gold, silver, and copper are exported to Europe.
4 The Yankee Fork, Loon Creek, and Stanley basin districts of Custer County were all contributors to the State exhibit of gold and silver ores .
5 High-grade silver ores are produced and sent to the smelting works at Aguascalientes, and copper mines are being actively worked, as well as gold ores.
6 The northern, or Salair, mining region is rich in silver ores , and the mine of this name used formerly to yield up to 93,300 oz.
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This collocation consists of: Translations for silver ores