在韩台煤田新和涯井田的勘探过程中发现，黄铁矿结核层与煤层中黄铁矿在物理性质方面存在较大差异。
In the exploration process of Xinheya coalfield in Hantai, great physical character differences between pyrite of nodule layer and that of coal seam were found.
针对酸性氯化物中黄铁矿还原浸出锰结核的溶液成分特点，选择黄钠铁矾法进行了沉淀分离铁的研究。
Jarosite process was selected for iron removal due to the characteristics of the solution originated from the reduction leaching of manganese nodules by pyrite in chloride system.
结核及脉状黄铁矿呈现粗粒或乳胶状。
Nodular and vein pyrite has coarse grains or latex like appearance;
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