161 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-04-29 17:39:17
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162 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-05-14 17:48:07
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163 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-04-23 13:17:02
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164 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-10-05 11:15:56
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165 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-13 13:47:40
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166 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-04-11 11:41:12
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167 | Add to Reading ListSource URL: www.bir.orgLanguage: English - Date: 2014-06-10 05:58:17
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168 | Add to Reading ListSource URL: www.ironsmith.ccLanguage: English - Date: 2013-03-25 19:38:36
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169 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2011-12-28 17:36:27
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170 | Add to Reading ListSource URL: www.txdps.state.tx.usLanguage: English - Date: 2014-07-23 15:17:17
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