121 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-14 13:35:14
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122 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-03-06 12:33:17
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123 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 1998-10-09 12:48:11
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124 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1998-02-26 09:16:35
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125 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-02-01 13:41:24
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126 | Add to Reading ListSource URL: www.nma.orgLanguage: English - Date: 2013-03-20 14:51:10
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127 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2011-09-27 12:25:06
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128 | Add to Reading ListSource URL: www.fas.orgLanguage: English - Date: 2014-05-06 14:01:20
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129 | Add to Reading ListSource URL: naturalresources.house.govLanguage: English - Date: 2014-07-21 12:30:52
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130 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-03-07 16:38:45
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