241 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-08-01 16:35:34
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242 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-10-29 16:31:14
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243 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-04-10 16:15:06
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244 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-09-06 15:06:31
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245 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-05-10 11:29:41
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246 | Add to Reading ListSource URL: democrats.naturalresources.house.govLanguage: English - Date: 2014-01-10 13:10:54
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247 | Add to Reading ListSource URL: workspace.imperial.ac.ukLanguage: English - Date: 2013-10-26 14:19:43
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248 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2007-01-03 13:47:23
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249 | Add to Reading ListSource URL: www.duke-energy.comLanguage: English - Date: 2009-06-25 16:16:19
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250 | Add to Reading ListSource URL: www.nunavut.caLanguage: English - Date: 2012-09-07 12:46:00
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