unwrought silver ore, unrefined metal in a lump

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Keywords: banska, copper, crystalline, geology, hydrothermal, jewelry, metal, metallic, mineral, mineralogy, minerals, mines, mining, nature, nugget, ore, potosi, precious, pyrargyrite, quartz, rare, rarity, silver, sterling, stone, sulfosalt, tetrahidrite, tin, treasure, veins, wealth