інші переклади
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mineral
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драгоценный металл |
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Its compounds tend to be found with ores of other metals, such as lead, silver, gold, and cobalt.
In an exhibition of mineral ores those of copper first attract the attention, providing a joy to the eye as do those of no other metal.
This deposit is the biggest in Bulgaria and in Europe for underground extract of gold-copper ores .
Students are taught how to make their own pigments from mineral sources such as ores , soils and carbon black.
Mercury is now extracted from its ores by a method that has been used for hundreds of years.
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