Inyungu za zahabu Umutungo wa zahabu wangiritse urashobora kugabanywamo ubwoko butatu bwingenzi: Ubwoko bwa mbere ni arsenic nyinshi, karubone, na sulferi yo mu bwoko bwa zahabu.Muri ubu bwoko, ibirimo arsenic birenze 3%, ibirimo karubone ni 1-2%, naho sulferi ni 5-6%.Ukoresheje cyan isanzwe ...
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