11 | Add to Reading ListSource URL: www.blm.govLanguage: English - Date: 2014-09-11 18:30:26
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12 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1998-09-11 09:22:19
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13 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-12-08 09:19:50
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14 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1996-11-05 15:00:40
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15 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2005-06-16 10:26:32
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16 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-04-10 11:55:30
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17 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-07-19 11:42:24
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18 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2009-07-24 12:41:53
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19 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2005-06-16 15:08:16
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20 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-12-17 14:52:12
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