111 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-05-31 10:56:00
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112 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-09-13 09:52:22
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113 | Add to Reading ListSource URL: www.nedstack.comLanguage: English - Date: 2012-02-03 08:13:55
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114 | Add to Reading ListSource URL: www.chem.unep.chLanguage: English - Date: 2010-01-12 11:37:09
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115 | Add to Reading ListSource URL: www.garfieldfoundation.orgLanguage: English - Date: 2011-11-21 18:03:34
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116 | Add to Reading ListSource URL: hydrogen.uoit.caLanguage: English - Date: 2009-04-18 13:28:21
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117 | Add to Reading ListSource URL: www.rsc.orgLanguage: English - Date: 2011-04-08 11:50:42
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118 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-09-14 13:26:30
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119 | Add to Reading ListSource URL: canexus.caLanguage: English - Date: 2012-04-19 18:57:15
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120 | Add to Reading ListSource URL: faculty.uoit.caLanguage: English - Date: 2006-10-18 22:41:20
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