121 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-08-15 09:02:05
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122 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-08-15 11:56:38
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123 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-11-21 11:10:20
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124 | Add to Reading ListSource URL: www.denverwater.orgLanguage: English - Date: 2014-04-30 15:57:23
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125 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 11:27:59
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126 | Add to Reading ListSource URL: iscarsah.icomos.orgLanguage: English - Date: 2008-09-24 04:08:20
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127 | Add to Reading ListSource URL: www.preservationnation.orgLanguage: English - Date: 2014-04-30 15:24:16
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128 | Add to Reading ListSource URL: www.nrc-cnrc.gc.caLanguage: English - Date: 2013-07-10 15:21:38
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129 | Add to Reading ListSource URL: www.nrc-cnrc.gc.caLanguage: English - Date: 2013-07-10 15:21:39
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130 | Add to Reading ListSource URL: www.cci-icc.gc.caLanguage: English - Date: 2014-06-19 10:57:44
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