- siliceous gangue
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кремнистые породные примеси
Англо-русский словарь технических терминов. 2005.
Англо-русский словарь технических терминов. 2005.
mineral deposit — Introduction aggregate of a mineral in an unusually high concentration. About half of the known chemical elements (chemical element) possess some metallic (metal) properties. The term metal, however, is reserved for those chemical… … Universalium