Home > Term: rock spar
rock spar
Material filling fracture cleavages in coal, consisting of nonclay mineral matter, probably deposited from solution, and sand, usually calcite or gypsum.
- Jenis Kata: noun
- Industri / Domain: Pertambangan
- Kategori: Peratmbangan secara umum; Mineral mining
- Government Agency: USBM
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- ed.young
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