首页 > Term: pencil ore
pencil ore
Hard, fibrous masses of hematite that can be split up into thin rods.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
0
创建者
- ed.young
- 100% positive feedback
(Milwaukee, United States)