131 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-01-31 14:59:07
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132 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-01-17 13:39:07
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133 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-01-24 11:07:54
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134 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-03-07 15:13:33
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135 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-01-24 11:49:54
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136 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-01-18 13:50:48
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137 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2009-01-29 15:00:07
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138 | Add to Reading ListSource URL: www.healthresearch.orgLanguage: English - Date: 2013-10-30 16:42:05
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139 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2003-02-11 10:53:18
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140 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-03-06 10:54:20
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