121 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2005-12-09 16:19:50
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122 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 1999-03-09 13:00:39
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123 | Add to Reading ListSource URL: www.usgs.govLanguage: English - Date: 2004-05-24 09:39:57
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124 | Add to Reading ListSource URL: www.maine.govLanguage: English - Date: 2014-03-12 15:04:32
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125 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-08-29 15:08:16
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126 | Add to Reading ListSource URL: www.coloscisoc.orgLanguage: English - Date: 2013-10-16 01:41:20
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127 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2014-06-19 16:51:19
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128 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2009-12-11 13:32:27
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129 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2008-06-18 21:31:37
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130 | Add to Reading ListSource URL: atlas.nrcan.gc.caLanguage: English - Date: 2012-12-10 13:36:45
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