Useful english dictionary. 2012.
Alum shale — Alum schist Al um schist , Alum shale Al um shale , (Min.) A variety of shale or clay slate, containing iron pyrites, the decomposition of which leads to the formation of alum, which often effloresces on the rock. [1913 Webster] … The Collaborative International Dictionary of English
alum-shale — alˈum shale or alˈum slate noun A slate consisting mainly of clay, iron pyrites and coaly matter, from which alum is obtained • • • Main Entry: ↑alum … Useful english dictionary
Alum schist — Al um schist , Alum shale Al um shale , (Min.) A variety of shale or clay slate, containing iron pyrites, the decomposition of which leads to the formation of alum, which often effloresces on the rock. [1913 Webster] … The Collaborative International Dictionary of English
alum schist — noun see alum shale … Useful english dictionary
alum slate — noun see alum shale … Useful english dictionary
Alum — This article is about the chemical compound. For other uses, see Alum (disambiguation). Bulk alum Alum ( / … Wikipedia
Alum Creek Lake — Infobox lake lake name = Alum Creek Lake image lake = USACE Alum Creek Dam and Lake.jpg caption lake = Alum Creek Dam and Lake. View is to the northwest. image bathymetry = caption bathymetry = location = Ohio coords =… … Wikipedia
alum-slate — alˈum shale or alˈum slate noun A slate consisting mainly of clay, iron pyrites and coaly matter, from which alum is obtained • • • Main Entry: ↑alum … Useful english dictionary
Oil shale — For the scientific technical journal, see Oil Shale (journal). Not to be confused with Shale oil or Tight oil. Oil shale Sedimentary Rock Combustion of oil shale Composition … Wikipedia
History of the oil shale industry — Cite paper last =Dyni | first =John R. title =Geology and resources of some world oil shale deposits. Scientific Investigations Report 2005–5294 publisher = U.S. Department of the Interior. U.S. Geological Survey year = 2006 url =… … Wikipedia
