홈 > Term: bright cake
bright cake
A black, highly carbonaceous slickensided shale with Carbonicola shells, in the Adwalton stone or Flockton thick coal; also, dirty smudgy coal in the roof of the Stanley Main in the Snydale-don Pedro area.
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)
