131 | Add to Reading ListSource URL: www.eef.org.ukLanguage: English - Date: 2014-05-29 00:53:40
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132 | Add to Reading ListSource URL: www.eef.org.ukLanguage: English - Date: 2014-05-28 12:20:45
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133 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2009-01-30 09:57:12
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134 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-01-24 11:56:10
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135 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-03-07 15:25:41
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136 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2010-01-27 09:00:58
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137 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2008-01-31 15:04:04
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138 | Add to Reading ListSource URL: www.bir.orgLanguage: English - Date: 2013-11-04 05:25:03
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139 | Add to Reading ListSource URL: www.bir.orgLanguage: English - Date: 2014-06-13 11:02:06
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140 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-07-09 16:39:37
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