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chat
The finely crushed gangue remaining after the extraction of lead and zinc minerals in the Tri-State District of Missouri, Kansas, and Oklahoma. The term is derived from chert.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)