131 | Add to Reading ListSource URL: ccrl.usLanguage: English - Date: 2013-10-02 14:31:38
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132 | Add to Reading ListSource URL: www.srmaterials.comLanguage: English - Date: 2011-10-04 14:31:52
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133 | Add to Reading ListSource URL: www.nationalslag.orgLanguage: English - Date: 2013-04-12 16:58:50
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134 | Add to Reading ListSource URL: www.nationalslag.orgLanguage: English - Date: 2013-04-12 16:58:42
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135 | Add to Reading ListSource URL: www.dot.state.fl.usLanguage: English - Date: 2013-11-05 09:29:25
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136 | Add to Reading ListSource URL: www.dot.state.fl.usLanguage: English - Date: 2011-01-04 14:20:14
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137 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-06-08 10:53:10
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138 | Add to Reading ListSource URL: blogs.cornell.eduLanguage: English - Date: 2011-11-13 10:34:23
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139 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-11-17 07:28:40
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140 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-13 13:24:48
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