首页 > Term: fine-grained rocks
fine-grained rocks
Rocks in which the crystals are very fine-grained, or else the whole or part is glass. These are the volcanic rocks.
- 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)