Bentonite

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551	PDF Document Add to Reading List Source URL: thetransitcoalition.us Language: English - Date: 2009-09-25 15:16:41 Earth pressure balance Civil engineering Tunnel New Austrian Tunnelling method Bentonite NATM Boring Metro Tunneling Group Tunnels Construction Tunnel boring machine
552	PDF Document Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2011-01-24 15:01:05 Chemistry Erionite Industrial mineral Diatomaceous earth Clinoptilolite Bentonite Mordenite Phillipsite Perlite Silicate minerals Zeolites Natural resources
553	PDF Document Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2012-01-24 10:49:04 Natural resources Chemistry Ceramic materials Minerals Bentonite Pottery Palygorskite Clay Kaolinite Medicinal clay Phyllosilicates Matter