Home > Term: boilum
boilum
Hard calcareous or siliceous nodules of irregular shape, found in the shales and underclays of the Coal Measures.
- Szófaj: noun
- Ipar/Tárgykör: Mining
- Kategória: General mining; Mineral mining
- Government Agency: USBM
0
Szerzőb
- ed.young
-
(V.I.P) 21084 points - 100% positive feedback
(Milwaukee, United States)
